7.2.3 The number of replacements and substitutes in all Cup Matches shall be up to eight in accordance with Law 3.15, the iRB Regulations and any current RFU Regulations relating thereto.
7.3 Front Row
Requirements
(a) With the exception of those Players who fall within Schools & Youth Regulation 2.2(b) (who are aged seventeen) no player may play in the front row of the scrum during contested or uncontested scrummages in adult rugby until he has reached his eighteenth birthday. Any breach of this Game Regulation shall be considered a serious breach and may give rise to a severe penalty.
(b) In the interest of safety
(i) in League and Play Off Matches each team must have at least five players
(or at Level 5 and below in League Matches, four players) in their nominated match squad, all at least eighteen years old (unless they are a player falling within Schools & Youth Regulation 2.2(b)), who are suitably trained and experienced to be capable of playing in the front row to ensure that on the first or second occasions (whether due to injury or consequent to a player(s) being temporarily suspended or ordered off) that a front row player is required to be replaced,
(ii) in Cup Matches each team must have at least six (6) fit and able players in the squad who can play at hooker, tight head prop and loose head prop who are suitably trained and experienced to ensure that on the first occasion that a replacement in any front row position is required (whether due to injury or consequent to a player(s) being temporarily suspended or ordered off)
the team can continue to play safely with contested scrums.
(c) Subject to (e) below in League Matches, Cup Matches and Play Off Matches if on any occasion other than a temporary blood injury uncontested scrums are ordered by the Referee having made enquiry of and having confirmed with the captain of the team (or such other person nominated by the Club as the manager or other person responsible for the team) there is no suitably trained and experienced front row replacement in accordance with 7.3(a) & (b) above due to injury, temporary exclusion (i.e. following a yellow card) or permanent exclusion (i.e. following a sending off)), the team concerned shall not be entitled to replace the player whose departure caused the uncontested scrums. On return to the field of play of a front row player who has been temporarily excluded the Match shall continue with contested scrums provided that it is safe to do so. Subject to (f) below the result of the match shall stand.
(d) Subject to (e) below where due to a temporary blood injury in League Matches, Cup Matches and Play Off Matches uncontested scrums are ordered by the Referee having made enquiry of and having confirmed with the captain of the team (or such other person nominated by the Club as the manager or other person responsible for the team) there being no suitably trained and experienced front row replacement in accordance with 7.3(a) & (b) above the team concerned shall be entitled to replace the player whose departure caused the uncontested scrums. In the event that the temporarily injured player has not returned to the field of player within fifteen (15) minutes so that the match can be safely played with contested scrums the referee must declare that scrums will uncontested for the remainder of the match and will ask the
team captain from the team which has failed to provide a suitably trained replacement to immediately remove from the field of play one player so that the match is concluded with the team failing to provide a suitably trained and experienced front row replacement comprising 14 players. Subject to (f) below the result of the match shall stand.
(e) In the event that in any League or Play Off Match to which these regulations apply the game is being played with uncontested scrums pursuant to regulation (c)and/or
(d) above two players from one team having been removed from the pitch and a third occasion occurs where due to injury, permanent or temporary exclusion or temporary removal for a blood injury of or to a front row forward from that team match
(i) In a League Match – the match shall be abandoned and subsequently the provisions of Game Regulation 18.2.2 shall apply.
(ii) Play-off matches – the match be abandoned. The result will then be determined by the appropriate Organising Committee of the League concerned. The Organising Committee may confirm or reverse the result and/or order the match to be replayed (on a date decided upon by the Organising Committee) and/or impose some other sanction.
(iv) Cup Competitions (including finals) – the result will stand subject to Game Regulation 7.3. (f) below.
(f) If a Match is completed with or contains uncontested scrums, the Club that was responsible for causing uncontested scrums must upon the request of the Organising Committee (or \Committee in the case of Cup Match) provide to it such information as it may require including if requested a medical report identifying the injuries sustained by its front row players if the Club Doctor or other qualified person had attended the Match. The Organising Committee (or Committee in the case of a Cup Match) may take such action it deems appropriate (including altering the result or ordering a replay of the Match) in respect of any suspected, alleged or actual breach of this Regulation 7.3. as it shall decide and shall notify all Clubs. Any Club may appeal against the decision of the Organising Committee in accordance with Regulation 10.2.10.