Newport Gwent Dragons have received a £10,000 suspended fine and forfeited last Friday's LV= Cup game with Saracens.
The punishment, announced by tournament organisers following consultation by the competition's organising committee, relates to the postponement against the English champions at Rodney Parade.
The committee ruled the Dragons were in breach of regulation 6.7 in that the pitch was unplayable, and no suitable alternative arrangements were in place.
It was also decided that Sarries would be awarded the fixture by a 20-0 scoreline.
The suspended fine will be in place until next season's LV= Cup pool phase is completed.
In a statement, cup organisers said: "The LV= organising committee accepted that there was no intention to gain any advantage by the pitch being unplayable and that preventative measures were put in place.
"However, the LV= Cup regulations are clear in that it is the home team's responsibility to ensure they can stage the fixture, as outlined in regulation 6.7."
The New Zealand All Blacks are wearing this new rugby jersey during their training sessions. Get in the Gear.
Price: $74.99 Buy at World Rugby ShopHeineken Cup holders Leinster will defend their title against Ulster on May 19. Get in the Gear!
Price: $89.99 Buy at World Rugby ShopUlster will look to win their first Heineken Cup title since 1998/99 on May 19 against Leinster.
Price: $19.99 Buy at World Rugby ShopA World Rugby Shop exclusive in the U.S., Stade Francais rugby gear. Make a statement.
Price: $74.99 Buy at World Rugby ShopmiCoach is being introduced in the game of Rugby. The latest addition to the soft ground collection is the adizero RS7 Pro II Rugby Boot!
Price: $199.99 Buy at World Rugby Shop
Rugby Match Ticker
Follow LIVE rugby action from around the globe with Rugby Rugby!
The World Rugby Shop has the best selection of official and team rugby gear from around the globe. Shop for your rugby gear today!