According to FC Legal Blogspot: The Football League Regulations have an equivalent rule (Regulation 22) but there have not been any instances of a Football League club falling foul of this regulation as yet. However, clubs including Carlisle and Bournemouth were fined for fielding weakened sides in the Johnstone’s Paint Trophy last season. Rule 7.3 of the Johnstone’s Paint Trophy Rules imposed an obligation on clubs to field at least 6 players who had made the most starting appearances in league and domestic cup fixtures during that season. This rule has now been amended to allow for clubs to make 5 changes to the previous line up in that competition. The term “full available strength” has been introduced, presumably to provide for injury, illness etc, and is defined as follows:
(a) A club must include in its starting line up at least 6 out of the 11 players who started the club fixture immediately preceding or following the relevant Johnstone’s Paint Trophy fixture; or
(b) A club must include in its starting line up at least 6 out of the 11 players who have made the most starting appearances in league and domestic cup competitions fixtures during that season.