The Backstreet Boys singer was charged with misdemeanour battery over a scuffle with a bouncer at Hog's Breath Saloon in Key West, Florida, in January but prosecutors will drop the charge and the offence will be wiped from his record if he finishes the punishment within the next six months.
According to TMZ, though the 36-year-old singer seemed "pretty wasted" at the time of his arrest, he hasn't been banned from drinking during the six-month period but have said he should not consume alcohol "too excess".
The 'I Want It That Way' hitmaker is also facing a civil lawsuit from the bouncer.
This wasn't the first time Nick had been in trouble with the police as he was also arrested in 2002, when he was aged just 21, in Tampa, Florida, after he was involved in a nightclub brawl.
The 'Dancing with the Stars' finalist was cuffed on suspicion of refusing to follow police orders to vacate Pop City.
He was charged with a misdemeanour count of resisting and opposing a law enforcement officer without violence but was later released on his own recognisance.
Bang Showbiz