Referee altering a decision - IRB Laws of Rugby Union 2012

Definitions
6.A

Referee
Before the match
6.A.1

Appointing the referee
6.A.2

Replacing the referee
6.A.3

Duties of the referee before the match
During the match
6.A.4

The duties of the referee in the playing enclosure
6.A.5

Referee altering a decision
6.A.6

Referee consulting with others
6.A.7

The referee’s whistle
6.A.8

The referee and injury
6.A.9

The ball touching the referee
6.A.10

The ball in in-goal touched by non-player
After the match
6.A.11

Score
6.A.12

Player sent-off
6.B

Touch judges and assistant referees
Before the match
6.B.1

Appointing touch judges and assistant referees
6.B.2

Replacing a touch judge or assistant referee
6.B.3

Control of touch judges and assistant referees
During the match
6.B.4

Where the touch judges or assistant referees should be
6.B.5

Touch judge or assistant referee signals
6.B.6

After signalling foul play
After the match
6.B.7

Player sent-off
6.C

Additional persons
6.C.1

Reserve touch judge or assistant referee
6.C.2

Those who may enter the playing area
6.C.3

Limits to entering the playing area

6.A.5 REFEREE ALTERING A DECISION

The referee may alter a decision when a touch judge has raised the flag to to signal touch.
The referee may alter a decision when an assistant referee has raised the flag to signal touch or an act of foul play.