Updated

For all those who think that a towel causally thrown on a lounge chair will ensure a prime spot on a cruise ship, think again.

Another cruise line says it's cracking down on chair hogs.  Travel Weekly reports that Norwegian has been testing a deck chair policing program on the Norwegian Star since the beginning of July.

The news comes after Carnival announced it launched a new program on the Carnival Breeze.

John Heald, Carnival’s senior cruise director, said on his Facebook page that the crew will patrol the decks and mark any unused--but clearly saved--chairs with a sticker.

“We went with 40 minutes as we felt that this was a fair amount of time if guests get up to eat, drink, pee, swim or slide,” Heald wrote on his Facebook.

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Norwegian spokesperson AnneMarie Mathews told Travel Weekly that its "current fleetwide policy is that we ask guests to please not reserve deck chairs for more than 45 minutes."