for Season 2011-12 (including additional league council information to member teams)
League Directives

LEAGUE DIRECTIVE 36 MATCH BALLS FOR CUP COMPETITIONS
Teams should be aware that. although a match ball is generally supplied by the League for all finals, each participating team must also supply a suitable match quality ball.
These balls must be available to the official referee, from the beginning of the match.
Any failure to comply with this directive makes the offending team liable for a fine of £20.00
Any team wishing to ascertain what the directive refers to as a suitable match quality ball should contact the League Fixtures Secretary for a ruling.