# Rule 1.1 Types of games: how the wording changed (American one-wall, small ball) 49 rulebooks state this rule, from 20 June 1990 to 30 October 2026. The wording was reworded or changed 4 times. ## How to read this - Added words are marked [+ like this +]; removed words [- like this -]. - Each rulebook says what kind of change it is: unchanged, punctuation only, moved, reworded or changed. - A program matched each clause with the one before it. Automatic matches were made by the program alone; machine-reviewed ones were also checked by a second program. A person has not checked either. ## Rulebook by rulebook | Date | Rulebook | Clauses, by kind of change | | --- | --- | --- | | 20 June 1990 | USHA Four-Wall Rules, 20 June 1990 | 2 first recorded | | 14 October 1994 | USHA One-Wall Rules, 14 October 1994 | 2 first recorded | | 31 January 1999 | USHA Four-Wall Rules, 31 January 1999 | 2 unchanged | | 31 January 1999 | American four-wall, 31 January 1999 | 2 unchanged | | 2000 | USHA One-Wall Rules, 2000 | 1 unchanged, 1 reworded | | 9 March 2001 | USHA One-Wall Rules, March 2001 | 2 unchanged | | 7 October 2001 | USHA One-Wall Rules, 7 October 2001 | 2 unchanged | | 8 April 2002 | USHA One-Wall Rules, 8 April 2002 | 2 unchanged | | 20 August 2002 | USHA One-Wall Rules, 20 August 2002 | 2 unchanged | | 19 January 2005 | USHA Three-Wall Addendum, December 2004 | 2 unchanged | | 1 April 2005 | USHA One-Wall Rules, 1 April 2005 | 1 unchanged, 1 punctuation only | | 15 April 2005 | USHA Four-Wall Rules, 16 January 2005 | 2 unchanged | | June 2006 | USHA Four-Wall Rule Changes, June 2006 | 2 unchanged | | June 2006 | American one-wall, small ball, June 2006 | 2 unchanged | | June 2006 | USHA One-Wall Rules, June 2006 | 2 unchanged | | May 2007 | USHA Four-Wall Rule Changes, May 2007 | 2 unchanged | | 13 October 2007 | American three-wall, 13 October 2007 | 2 unchanged | | June 2008 | USHA One-Wall Rules, June 2008 | 2 unchanged | | 2012 | USHA Four-Wall Rules, 2012 | 2 unchanged | | 2014 | USHA Four-Wall Rules, 2014 | 2 unchanged | | January 2014 | USHA One-Wall Rules, January 2014 | 1 unchanged, 1 punctuation only | | 6 February 2015 | USHA Four-Wall Rules, 6 February 2015 | 2 unchanged | | 6 February 2015 | USHA One-Wall Addendum, 6 February 2015 | 1 unchanged, 1 changed | | 6 February 2015 | USHA Three-Wall Addendum, 6 February 2015 | 2 unchanged | | 22 January 2017 | USHA Four-Wall Rules, 22 January 2017 | 2 unchanged | | 22 January 2017 | USHA One-Wall Addendum, 22 January 2017 | 2 unchanged | | 22 January 2017 | USHA Three-Wall Addendum, 22 January 2017 | 2 unchanged | | 27 January 2019 | USHA Four-Wall Rules, 27 January 2019 | 2 unchanged | | 27 January 2019 | USHA One-Wall Rules, 27 January 2019 | 1 unchanged, 1 changed | | 12 July 2019 | American four-wall, 12 July 2019 | 2 unchanged | | 12 July 2019 | American one-wall, small ball, 12 July 2019 | 2 unchanged | | 26 January 2020 | USHA Four-Wall Rules, 26 January 2020 | 2 unchanged | | 26 January 2020 | USHA One-Wall Rules, 26 January 2020 | 2 unchanged | | 20 September 2020 | USHA One-Wall Rules, September 2020 | 2 unchanged | | 21 September 2020 | USHA Four-Wall Rules, September 2020 | 2 unchanged | | 22 January 2021 | USHA Four-Wall Rules, 22 January 2021 | 2 unchanged | | 22 January 2021 | USHA One-Wall Rules, 22 January 2021 | 2 unchanged | | 9 December 2021 | USHA Four-Wall Rules, December 2021 | 2 unchanged | | 23 January 2022 | USHA Four-Wall Rules, 23 January 2022 | 2 unchanged | | 23 January 2022 | USHA One-Wall Rules, 23 January 2022 | 2 unchanged | | 27 November 2022 | American four-wall, 27 November 2022 | 2 unchanged | | 17 January 2024 | American four-wall, 17 January 2024 | 2 unchanged | | 26 January 2024 | USHA Four-Wall Rules, 26 January 2024 | 2 unchanged | | 26 January 2024 | USHA One-Wall Rules, 26 January 2024 | 2 unchanged | | 17 July 2024 | American one-wall, small ball, 17 July 2024 | 2 unchanged | | 26 January 2025 | USHA Four-Wall Rulebook, 26 January 2025 | 2 unchanged | | 26 January 2025 | USHA One-Wall Rulebook, 26 January 2025 | 2 unchanged | | 26 January 2025 | USHA Three-Wall Addendum, 26 January 2025 | 2 unchanged | | 30 October 2026 | USHA Four-Wall Abridged Rules, May 2010 | 1 reworded | ## The wording ### Rule 1.1, part 1 of 2 Begins: “Four-wall handball may be played by two, three or…” - **20 June 1990, USHA Four-Wall Rules**: First recorded (automatic). > Four-wall handball may be played by two, three or four players. Interpretations: 3 interpretations attached. - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **14 October 1994, USHA One-Wall Rules**: First recorded (automatic). > Handball may be played by two, three or four players. Interpretations: 3 interpretations attached. - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **31 January 1999, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 20 June 1990. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **31 January 1999, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 20 June 1990. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **2000, USHA One-Wall Rules**: Reworded (machine-reviewed). Compared with USHA One-Wall Rules, 14 October 1994. > [- Handball -] [+ One-wall handball +] may be played by two, three or four players. 2 words added, 1 removed. 4 more rulebooks with the same words: - 9 March 2001, USHA One-Wall Rules: Unchanged (automatic). - 7 October 2001, USHA One-Wall Rules: Unchanged (automatic). - 8 April 2002, USHA One-Wall Rules: Unchanged (automatic). - 20 August 2002, USHA One-Wall Rules: Unchanged (automatic). - **19 January 2005, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **1 April 2005, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 20 August 2002. Same words as the rulebook compared with. Interpretations: 4 interpretations attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **15 April 2005, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged. - New here: Part 1, Rule 1.1: Interpretation No. 1: - **June 2006, USHA Four-Wall Rule Changes**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 16 January 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **June 2006, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 1 April 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **June 2006, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 1 April 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **May 2007, USHA Four-Wall Rule Changes**: Unchanged (automatic). Compared with USHA Four-Wall Rule Changes, June 2006. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **13 October 2007, American three-wall**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged. - New here: Part 1, Rule 1.1: Interpretation No. 1: - **June 2008, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, June 2006. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **2012, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rule Changes, May 2007. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged; 1 earlier one no longer attached. - New here: “Cutthroat” is not an official tournament game. - **2014, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 2012. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **January 2014, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, June 2008. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **6 February 2015, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 2014. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **6 February 2015, USHA One-Wall Addendum**: Changed (machine-reviewed). Compared with USHA One-Wall Rules, January 2014. > [- One-wall -] [+ Four-wall +] handball may be played by two, three or four players. 1 word added, 1 removed. Interpretations: 4 interpretations attached; 3 carried over unchanged; 1 earlier one no longer attached. - New here: “Cutthroat” is not an official tournament game. - **6 February 2015, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, December 2004. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 2 carried over unchanged; 1 earlier one no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA One-Wall Addendum**: Unchanged (automatic). Compared with USHA One-Wall Addendum, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **27 January 2019, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 22 January 2017. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **27 January 2019, USHA One-Wall Rules**: Changed (machine-reviewed). Compared with USHA One-Wall Addendum, 22 January 2017. > [- Four-wall -] [+ One-wall +] handball may be played by two, three or four players. 1 word added, 1 removed. Interpretations: 4 interpretations attached; 2 carried over unchanged; 1 earlier one no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: “Cutthroat” is not an official tournament game. - **12 July 2019, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 27 January 2019. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **12 July 2019, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 27 January 2019. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2020, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 12 July 2019. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2020, USHA One-Wall Rules**: Unchanged (automatic). Compared with American one-wall, small ball, 12 July 2019. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **20 September 2020, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 26 January 2020. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **21 September 2020, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 26 January 2020. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **22 January 2021, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, September 2020. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **22 January 2021, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, September 2020. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **9 December 2021, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 22 January 2021. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **23 January 2022, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, December 2021. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **23 January 2022, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 22 January 2021. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **27 November 2022, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 23 January 2022. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **17 January 2024, American four-wall**: Unchanged (automatic). Compared with American four-wall, 27 November 2022. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2024, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 17 January 2024. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2024, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 23 January 2022. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **17 July 2024, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 26 January 2024. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2025, USHA Four-Wall Rulebook**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 26 January 2024. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2025, USHA One-Wall Rulebook**: Unchanged (automatic). Compared with American one-wall, small ball, 17 July 2024. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2025, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, 22 January 2017. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **30 October 2026, USHA Four-Wall Abridged Rules**: Reworded (machine-reviewed). Compared with USHA Four-Wall Rules, 16 January 2005. > [- Four-wall handball may -] [+ Handball can +] be played by [- two, -] [+ two (singles), +] three [+ (cutthroat) +] or four [+ (doubles) +] players. 6 words added, 4 removed. ### Rule 1.1, part 2 of 2 Begins: “When played by two, it is called singles; when…” - **20 June 1990, USHA Four-Wall Rules**: First recorded (automatic). > When played by two, it is called singles; when played by three, cutthroat (See Interpretation No.1); and when played by four, doubles. Interpretations: 3 interpretations attached. - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **14 October 1994, USHA One-Wall Rules**: First recorded (automatic). > When played by two, it is called singles; when played by three, cutthroat (See Interpretation No. 1); and when played by four, doubles. Interpretations: 3 interpretations attached. - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **31 January 1999, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 20 June 1990. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **31 January 1999, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 20 June 1990. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. 5 more rulebooks with the same words: - 2000, USHA One-Wall Rules: Unchanged (automatic). Same words as USHA One-Wall Rules, 14 October 1994. - 9 March 2001, USHA One-Wall Rules: Unchanged (automatic). - 7 October 2001, USHA One-Wall Rules: Unchanged (automatic). - 8 April 2002, USHA One-Wall Rules: Unchanged (automatic). - 20 August 2002, USHA One-Wall Rules: Unchanged (automatic). - **19 January 2005, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **1 April 2005, USHA One-Wall Rules**: Punctuation only (automatic). Compared with USHA One-Wall Rules, 20 August 2002. > When played by two, it is called singles; when played by three, cutthroat [- (See -] [+ ( See +] Interpretation [- No. 1); -] [+ No.1 ); +] and when played by four, doubles. 4 words added, 3 removed. Interpretations: 4 interpretations attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: "Cutthroat" is not an official tournament game. - New here: It is a game devised for use in practice with three players. - New here: There are a number of ways to play cutthroat, and the rules for singles should apply to the player playing without a partner, just as the rules for doubles should apply to two players playing as a team. - **15 April 2005, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged. - New here: Part 1, Rule 1.1: Interpretation No. 1: - **June 2006, USHA Four-Wall Rule Changes**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 16 January 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **June 2006, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 1 April 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **June 2006, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 1 April 2005. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **May 2007, USHA Four-Wall Rule Changes**: Unchanged (automatic). Compared with USHA Four-Wall Rule Changes, June 2006. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **13 October 2007, American three-wall**: Unchanged (automatic). Compared with American four-wall, 31 January 1999. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged. - New here: Part 1, Rule 1.1: Interpretation No. 1: - **June 2008, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, June 2006. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **2012, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rule Changes, May 2007. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged; 1 earlier one no longer attached. - New here: “Cutthroat” is not an official tournament game. - **2014, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 2012. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **January 2014, USHA One-Wall Rules**: Punctuation only (automatic). Compared with USHA One-Wall Rules, June 2008. > When played by two, it is called singles; when played by three, cutthroat [- ( See -] [+ (See +] Interpretation [- No.1 ); -] [+ No.1); +] and when played by four, doubles. 2 words added, 4 removed. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **6 February 2015, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 2014. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **6 February 2015, USHA One-Wall Addendum**: Unchanged (automatic). Compared with USHA One-Wall Rules, January 2014. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 3 carried over unchanged; 1 earlier one no longer attached. - New here: “Cutthroat” is not an official tournament game. - **6 February 2015, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, December 2004. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 2 carried over unchanged; 1 earlier one no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA One-Wall Addendum**: Unchanged (automatic). Compared with USHA One-Wall Addendum, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **22 January 2017, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, 6 February 2015. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 2 carried over unchanged; 2 earlier ones no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: “Cutthroat” is not an official tournament game. - **27 January 2019, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 22 January 2017. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **27 January 2019, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Addendum, 22 January 2017. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 2 carried over unchanged; 1 earlier one no longer attached. - New here: Part 1, Rule 1.1: Interpretation No. 1: - New here: “Cutthroat” is not an official tournament game. - **12 July 2019, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 27 January 2019. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **12 July 2019, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 27 January 2019. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2020, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 12 July 2019. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2020, USHA One-Wall Rules**: Unchanged (automatic). Compared with American one-wall, small ball, 12 July 2019. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **20 September 2020, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 26 January 2020. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **21 September 2020, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 26 January 2020. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **22 January 2021, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, September 2020. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **22 January 2021, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, September 2020. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **9 December 2021, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 22 January 2021. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **23 January 2022, USHA Four-Wall Rules**: Unchanged (automatic). Compared with USHA Four-Wall Rules, December 2021. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **23 January 2022, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 22 January 2021. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **27 November 2022, American four-wall**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 23 January 2022. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **17 January 2024, American four-wall**: Unchanged (automatic). Compared with American four-wall, 27 November 2022. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2024, USHA Four-Wall Rules**: Unchanged (automatic). Compared with American four-wall, 17 January 2024. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2024, USHA One-Wall Rules**: Unchanged (automatic). Compared with USHA One-Wall Rules, 23 January 2022. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **17 July 2024, American one-wall, small ball**: Unchanged (automatic). Compared with USHA One-Wall Rules, 26 January 2024. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2025, USHA Four-Wall Rulebook**: Unchanged (automatic). Compared with USHA Four-Wall Rules, 26 January 2024. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. - **26 January 2025, USHA One-Wall Rulebook**: Unchanged (automatic). Compared with American one-wall, small ball, 17 July 2024. Same words as the rulebook compared with. Interpretations: 4 interpretations attached; 4 carried over unchanged. - **26 January 2025, USHA Three-Wall Addendum**: Unchanged (automatic). Compared with USHA Three-Wall Addendum, 22 January 2017. Same words as the rulebook compared with. Interpretations: 3 interpretations attached; 3 carried over unchanged. All rules: [clause history](https://handball.theperfectship.com/rulebooks/clause-history/).