All changes from the 1993 Rules are underlined. The significant changes are as follows:
1. Whereas previous Rules of Squash used masculine pronouns for convenience, the 1997 Rules are non-gender specific, recognising the fact that Squash is as much a game for females as for males. Considerable minor rewording has been necessary to achieve this important change.
2. Wording of the service rule has been simplified to avoid duplication. To initiate service, any player may now drop the ball from either a hand or the racket, and more than one attempt is permitted to strike the ball. The cut line has been renamed the service line.
3. Rule 7 has become Continuity Of Play (the former Rule 7. Let, is now a definition). The obligations of a player suffering an illness or disability are detailed in this Rule and in Guideline G2. Contained in this Rule also are the considerations of a player dropping an object to the floor of the court. If this occurs, basically play has to stop unless the object is a racket, and the player will lose the stroke unless a collision or interference situation is the cause. Guideline G4 amplifies the requirements.
4. The requirements for non-striker struck by the ball have been more clearly defined, and the former Marker call of "Down" is no longer required. If the non-striker is hit by the ball coming from the front wall, and interference is not the reason, then the non-striker will lose the stroke in all cases except further attempt. Rule 8.3 outlines the requirements, and a Guideline G5, covers all cases of player struck by the ball, both striker and non-striker.
5. A separate rule for injury now exists, Rule 16, and although the three categories of injury remain, the third is renamed "Opponent-inflicted". Recovery time for a self-inflicted injury is limited to three minutes unless blood flow accompanies the injury (a Guideline, G15, amplifies the requirements). The stipulated recovery time for a contributed injury is one hour but that may be extended in some circumstances. Requirements relevant to blood flow are detailed in this rule, including re-bleeding, and also included is the procedure for a claimed injury not accepted as such by the Referee
6. A minor wording change in the rule relating to on court offences now makes it mandatory to penalise a player when an offence has occurred.
7. The correct position for marking and refereeing a Squash match forms part of the rules instead of appearing as an appendix.
App. 1: This Appendix contains 22 Guidelines, the Guideline numbers being referenced in the Rules themselves. Significantly altered or new Guidelines are Guideline 2, dealing with illness or disability; Guideline 4, fallen object provisions; Guideline 5, player struck by the ball; Guideline 15, self-inflicted injury and blood flow; Guideline 16, coaching and crowd control; Guideline 18, requirements for single official; Guideline 19, examples of MarkerĘs calls.
App.2: A new MarkerĘs call of "Stop" is defined.
App.3: The W.S.F. will evaluate one experimental officiating system only during the validity of the 1997 Rules, that known as the 2-Referee system, and will discontinue consideration of either of the two 3-Judge systems.
App. 6: A Squash court diagram accompanies the description and dimensions of world singles and doubles courts.
App. 10: Protective eyewear recommendations and standards are set out.