Clause history · American one-wall, small ball
Rule 2.5 Eye protection: how the wording changed
48 rulebooks state this rule, from 20 June 1990 to 26 January 2025. The wording was reworded or changed 13 times.
How to read this page
- Added words are underlined and sit inside [+ +].
Removed wordsare struck through and sit inside [- -].- Each rulebook says in words what kind of change it is: unchanged (same wording as the rulebook it was compared with); punctuation only (only punctuation, spacing or capitals differ); moved (same wording, in another place or under another number); reworded (the sense is the same, said in other words); changed (the rule now says something different).
- 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, so a wrong match is possible.
Rulebook by rulebook
The table has one row per rulebook; each date jumps to its wording below.
| 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 | 1 unchanged, 1 punctuation only |
| 31 January 1999 | American four-wall, 31 January 1999 | 1 unchanged, 1 punctuation only |
| 2000 | USHA One-Wall Rules, 2000 | 2 unchanged |
| 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 | 2 punctuation only |
| 15 April 2005 | USHA Four-Wall Rules, 16 January 2005 | 1 punctuation only, 1 changed |
| 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 | 1 punctuation only, 1 changed |
| June 2008 | USHA One-Wall Rules, June 2008 | 1 unchanged, 1 punctuation only |
| 2012 | USHA Four-Wall Rules, 2012 | 2 unchanged |
| 2014 | USHA Four-Wall Rules, 2014 | 1 unchanged, 1 changed |
| January 2014 | USHA One-Wall Rules, January 2014 | 1 reworded, 1 changed |
| 6 February 2015 | USHA Four-Wall Rules, 6 February 2015 | 1 unchanged, 1 changed |
| 6 February 2015 | USHA One-Wall Addendum, 6 February 2015 | 1 reworded, 1 changed |
| 6 February 2015 | USHA Three-Wall Addendum, 6 February 2015 | 1 punctuation only, 1 changed |
| 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 reworded, 1 changed |
| 12 July 2019 | American four-wall, 12 July 2019 | 1 unchanged, 1 punctuation only |
| 12 July 2019 | American one-wall, small ball, 12 July 2019 | 1 unchanged, 1 changed |
| 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 | 1 unchanged, 1 reworded |
The wording
Each part of the rule is followed on its own, oldest rulebook first. Rulebooks of other codes that borrowed the wording appear in their place by date.
Rule 2.5, item A
Begins: “A. General. Protective eye wear must be properly worn…”
20 June 1990 USHA Four-Wall Rules (American four-wall)
A. General.
Protective eye wear must be properly worn at all times during play.
The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3 m.m. center thickness.14 October 1994 USHA One-Wall Rules
A. General. Protective eyewear must be properly worn at all times during play. The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3 mm. center thickness.
31 January 1999 USHA Four-Wall Rules (American four-wall)
Compared with USHA Four-Wall Rules, 20 June 1990.
A. General.
Protective eye wear must be properly worn at all times during play.The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3 m.m. center thickness.no words changed.
31 January 1999 American four-wall (American four-wall)
Compared with USHA Four-Wall Rules, 20 June 1990.
A. General.
Protective eye wear must be properly worn at all times during play.The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3 m.m. center thickness.no words changed.
6 more rulebooks with the same words
- 2000 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 14 October 1994. Read the rule
- 9 March 2001 USHA One-Wall Rules Unchanged automatic Read the rule
- 7 October 2001 USHA One-Wall Rules Unchanged automatic Read the rule
- 8 April 2002 USHA One-Wall Rules Unchanged automatic Read the rule
- 20 August 2002 USHA One-Wall Rules Unchanged automatic Read the rule
- 19 January 2005 USHA Three-Wall Addendum (American three-wall) Unchanged automatic Same words as American four-wall, 31 January 1999.
1 April 2005 USHA One-Wall Rules
Compared with USHA One-Wall Rules, 20 August 2002.
A. General. Protective
eyeweareye wear must be properly worn at all times during play. The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3mm.m.m. center thickness.3 words added, 2 removed.
15 April 2005 USHA Four-Wall Rules (American four-wall)
Compared with American four-wall, 31 January 1999.
A. General. Protective eye wear must be properly worn at all times during play. The USHA recommends that players select unaltered lensed eye protection designed for court sports, with
polycarbonate lenses of at least 3 m.m. center thickness.specifications that meet or exceed either ASTM, ANSI or Snell standards.12 words added, 9 removed.
4 more rulebooks with the same words
- June 2006 USHA Four-Wall Rule Changes (American four-wall) Unchanged automatic
- June 2006 American one-wall, small ball Unchanged automatic Same words as USHA One-Wall Rules, 1 April 2005.
- June 2006 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 1 April 2005. Read the rule
- May 2007 USHA Four-Wall Rule Changes (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rule Changes, June 2006.
13 October 2007 American three-wall (American three-wall)
Compared with American four-wall, 31 January 1999.
A. General. Protective eye wear must be properly worn at all times during play. The USHA recommends that players select unaltered lensed eye protection designed for court sports, with
polycarbonate lenses of at least 3 m.m. center thickness.specifications that meet or exceed either ASTM, ANSI or Snell standards.12 words added, 9 removed.
June 2008 USHA One-Wall Rules
Compared with USHA One-Wall Rules, June 2006.
A. General. Protective eye wear must be properly worn at all times during play. The USHA recommends that players select lensed eye protection designed for court sports, with polycarbonate lenses of at least 3
m.m.mm. center thickness.1 word added, 1 removed.
- 2012 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rule Changes, May 2007. Read the rule
2014 USHA Four-Wall Rules (American four-wall)
Compared with USHA Four-Wall Rules, 2012.
A. General. Protective eye wear must be properly worn at all times
during play.on a court. The USHA recommends that players select unaltered lensed eye protection designed for court sports, with specifications that meet or exceed either ASTM,ANSIANSI, or Snell standards.4 words added, 3 removed.
January 2014 USHA One-Wall Rules
Compared with USHA One-Wall Rules, June 2008.
A. General. A. General. Protective eye wear must be properly worn at all times
during play.on a court. The USHA recommends that players select unaltered lensed eye protection designed for court sports, withpolycarbonate lenses of at least 3 mm. center thickness.specifications that meet or exceed either ASTM, ANSI, or Snell standards.17 words added, 11 removed.
6 February 2015 USHA Four-Wall Rules (American four-wall)
Compared with USHA Four-Wall Rules, 2014.
A. General.
ProtectiveRecognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports mustbeproperly worn at all times onathe court. The USHA recommends that players select unaltered lensed eyeprotection designed for court sports,wear, with specifications that meet or exceed either ASTM,ANSI,ANSI or Snell standards.24 words added, 9 removed.
6 February 2015 USHA One-Wall Addendum
Compared with USHA One-Wall Rules, January 2014.
A. General.
A. General. ProtectiveRecognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports mustbeproperly worn at all times onathe court. The USHA recommends that players select unaltered lensed eyeprotection designed for court sports,wear, with specifications that meet or exceed either ASTM,ANSI,ANSI or Snell standards.24 words added, 11 removed.
6 February 2015 USHA Three-Wall Addendum (American three-wall)
Compared with USHA Three-Wall Addendum, December 2004.
A. General.
ProtectiveRecognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports mustbeproperly worn at all timesduring play.on the court. The USHA recommends that players select unaltered lensed eyeprotection designed for court sports,wear, withpolycarbonate lenses of at least 3 m.m. center thickness.specifications that meet or exceed either ASTM, ANSI or Snell standards.37 words added, 18 removed.
4 more rulebooks with the same words
- 22 January 2017 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 6 February 2015. Read the rule
- 22 January 2017 USHA One-Wall Addendum Unchanged automatic Same words as USHA One-Wall Addendum, 6 February 2015.
- 22 January 2017 USHA Three-Wall Addendum (American three-wall) Unchanged automatic Same words as USHA Three-Wall Addendum, 6 February 2015.
- 27 January 2019 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 22 January 2017. Read the rule
27 January 2019 USHA One-Wall Rules
Compared with USHA One-Wall Addendum, 22 January 2017.
A. General.
Recognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protectiveProtective eye weardesigned for court sportsmust be properly worn at all times onthea court. The USHA recommends that players select unaltered lensed eyewear,protection designed for court sports, with specifications that meet or exceed either ASTM,ANSIANSI, or Snell standards.9 words added, 24 removed.
12 July 2019 American four-wall (American four-wall)
Compared with USHA Four-Wall Rules, 27 January 2019.
A. General. Recognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports must be properly worn at all times on the court. The USHA recommends that players select unaltered lensed eye wear, with specifications that meet or exceed either ASTM, ANSI or Snell standards.
1 word added.
12 July 2019 American one-wall, small ball
Compared with USHA One-Wall Rules, 27 January 2019.
A. General.
ProtectiveRecognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports must be properly worn at all times onathe court. The USHA recommends that players select unaltered lensed eyeprotection designed for court sports,wear, with specifications that meet or exceed either ASTM,ANSI,ANSI or Snell standards.24 words added, 8 removed.
16 more rulebooks with the same words
- 26 January 2020 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as American four-wall, 12 July 2019. Read the rule
- 26 January 2020 USHA One-Wall Rules Unchanged automatic Same words as American one-wall, small ball, 12 July 2019. Read the rule
- 20 September 2020 USHA One-Wall Rules Unchanged automatic Read the rule
- 21 September 2020 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 26 January 2020. Read the rule
- 22 January 2021 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 22 January 2021 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, September 2020. Read the rule
- 9 December 2021 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 22 January 2021. Read the rule
- 23 January 2022 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 23 January 2022 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 22 January 2021. Read the rule
- 27 November 2022 American four-wall (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 23 January 2022.
- 17 January 2024 American four-wall (American four-wall) Unchanged automatic
- 26 January 2024 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 26 January 2024 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 23 January 2022. Read the rule
- 17 July 2024 American one-wall, small ball Unchanged automatic
- 26 January 2025 USHA Four-Wall Rulebook (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 26 January 2024. Read the rule
- 26 January 2025 USHA One-Wall Rulebook Unchanged automatic Same words as American one-wall, small ball, 17 July 2024. Read the rule
26 January 2025 USHA Three-Wall Addendum (American three-wall)
Compared with USHA Three-Wall Addendum, 22 January 2017.
A. General. Recognizing that protective eye wear cannot guarantee 100% safety from eye injuries resulting from playing handball, protective eye wear designed for court sports must be properly worn at all times on the court. The USHA recommends that players select unaltered lensed eye wear, with specifications that meet or exceed either ASTM, ANSI or Snell standards.
1 word added.
Rule 2.5, item B
Begins: “B. Violations. Failure to wear appropriate protective eye wear…”
20 June 1990 USHA Four-Wall Rules (American four-wall)
B. Violations.
Failure to wear appropriate protective eye wear properly will result in a technical (Rule 4.9), and the player will be charged a timeout to secure eye wear.
The second violation in the same match will result in a forfeit. (See Interpretation No. 3).14 October 1994 USHA One-Wall Rules
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical (See Rule 4.9), and the player will be charged a time-out to secure eyewear. The second violation in the same match will result in a forfeit (See Interpretation No. 3).
31 January 1999 USHA Four-Wall Rules (American four-wall)
Compared with USHA Four-Wall Rules, 20 June 1990.
B. Violations.
Failure to wear appropriate protectiveeye weareyewear properly will result in a technical (Rule 4.9), and the player will be charged a timeout to secureeye wear.eyewear. The second violation in the same match will result in a forfeit. (See Interpretation No. 3).2 words added, 4 removed.
31 January 1999 American four-wall (American four-wall)
Compared with USHA Four-Wall Rules, 20 June 1990.
B. Violations.
Failure to wear appropriate protectiveeye weareyewear properly will result in a technical(Rule(see Rule 4.9), and the player will be charged a timeout to secureeye wear.eyewear. The second violation in the same match will result in a forfeit. (See Interpretation No. 3).4 words added, 5 removed.
6 more rulebooks with the same words
- 2000 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 14 October 1994. Read the rule
- 9 March 2001 USHA One-Wall Rules Unchanged automatic Read the rule
- 7 October 2001 USHA One-Wall Rules Unchanged automatic Read the rule
- 8 April 2002 USHA One-Wall Rules Unchanged automatic Read the rule
- 20 August 2002 USHA One-Wall Rules Unchanged automatic Read the rule
- 19 January 2005 USHA Three-Wall Addendum (American three-wall) Unchanged automatic Same words as American four-wall, 31 January 1999.
1 April 2005 USHA One-Wall Rules
Compared with USHA One-Wall Rules, 20 August 2002.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical
(See( see Rule4.9),4.10 ), and the player will be charged atime-outtimeout to secure eyewear. The second violation in the same match will result in aforfeit (See Interpretation No. 3).forfeit.6 words added, 8 removed.
15 April 2005 USHA Four-Wall Rules (American four-wall)
Compared with American four-wall, 31 January 1999.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical (see Rule 4.9), and the player will be charged a timeout to secure eyewear. The second violation in the same match will result in a forfeit.
(See Interpretation No. 3).4 words removed.
4 more rulebooks with the same words
- June 2006 USHA Four-Wall Rule Changes (American four-wall) Unchanged automatic
- June 2006 American one-wall, small ball Unchanged automatic Same words as USHA One-Wall Rules, 1 April 2005.
- June 2006 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 1 April 2005. Read the rule
- May 2007 USHA Four-Wall Rule Changes (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rule Changes, June 2006.
13 October 2007 American three-wall (American three-wall)
Compared with American four-wall, 31 January 1999.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical (see Rule 4.9), and the player will be charged a timeout to secure eyewear. The second violation in the same match will result in a forfeit.
(See Interpretation No. 3).4 words removed.
3 more rulebooks with the same words
- June 2008 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, June 2006. Read the rule
- 2012 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rule Changes, May 2007. Read the rule
- 2014 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
January 2014 USHA One-Wall Rules
Compared with USHA One-Wall Rules, June 2008.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical ( see Rule 4.10 ), and the player will be charged a timeout to secure protective eyewear. The second violation in the same match will result in a forfeit.
1 word added.
- 6 February 2015 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 2014. Read the rule
6 February 2015 USHA One-Wall Addendum
Compared with USHA One-Wall Rules, January 2014.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical
( see(see Rule4.10 ),4.9), and the player will be charged a timeout to secureprotectiveeyewear. The second violation in the same match will result in a forfeit.2 words added, 5 removed.
6 February 2015 USHA Three-Wall Addendum (American three-wall)
Compared with USHA Three-Wall Addendum, December 2004.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical (see Rule 4.9), and the player will be charged a timeout to secure eyewear. The second violation in the same match will result in a forfeit.
(See Interpretation No. 3).4 words removed.
4 more rulebooks with the same words
- 22 January 2017 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 6 February 2015. Read the rule
- 22 January 2017 USHA One-Wall Addendum Unchanged automatic Same words as USHA One-Wall Addendum, 6 February 2015.
- 22 January 2017 USHA Three-Wall Addendum (American three-wall) Unchanged automatic Same words as USHA Three-Wall Addendum, 6 February 2015.
- 27 January 2019 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 22 January 2017. Read the rule
27 January 2019 USHA One-Wall Rules
Compared with USHA One-Wall Addendum, 22 January 2017.
B. Violations. Failure to wear appropriate protective eyewear properly will result in a technical
(see( see Rule4.9),4.10 ), and the player will be charged a timeout to secure protective eyewear. The second violation in the same match will result in a forfeit.5 words added, 2 removed.
19 more rulebooks with the same words
- 12 July 2019 American four-wall (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 27 January 2019.
- 12 July 2019 American one-wall, small ball Unchanged automatic Same words as USHA One-Wall Rules, 27 January 2019.
- 26 January 2020 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as American four-wall, 12 July 2019. Read the rule
- 26 January 2020 USHA One-Wall Rules Unchanged automatic Same words as American one-wall, small ball, 12 July 2019. Read the rule
- 20 September 2020 USHA One-Wall Rules Unchanged automatic Read the rule
- 21 September 2020 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 26 January 2020. Read the rule
- 22 January 2021 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 22 January 2021 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, September 2020. Read the rule
- 9 December 2021 USHA Four-Wall Rules (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 22 January 2021. Read the rule
- 23 January 2022 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 23 January 2022 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 22 January 2021. Read the rule
- 27 November 2022 American four-wall (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 23 January 2022.
- 17 January 2024 American four-wall (American four-wall) Unchanged automatic
- 26 January 2024 USHA Four-Wall Rules (American four-wall) Unchanged automatic Read the rule
- 26 January 2024 USHA One-Wall Rules Unchanged automatic Same words as USHA One-Wall Rules, 23 January 2022. Read the rule
- 17 July 2024 American one-wall, small ball Unchanged automatic
- 26 January 2025 USHA Four-Wall Rulebook (American four-wall) Unchanged automatic Same words as USHA Four-Wall Rules, 26 January 2024. Read the rule
- 26 January 2025 USHA One-Wall Rulebook Unchanged automatic Same words as American one-wall, small ball, 17 July 2024. Read the rule
- 26 January 2025 USHA Three-Wall Addendum (American three-wall) Unchanged automatic Same words as USHA Three-Wall Addendum, 22 January 2017.
All rules: clause history. The family tree is at Rulebooks.