Nightclubs will get a break from being ticketed by police under a new deal to improve safety following the murders of two young women last year after they left separate Manhattan drinking establishments.

The deal includes a list of suggestions for nightclubs developed by city officials and the New York Night Life Association, such as adding more surveillance cameras, hiring more security guards, and discontinuing special treatment for VIPs, celebrities, and their “entourages.”

In exchange, Commissioner Raymond Kelly said police would cut down on the number of “disorderly premise” tickets issued to clubs. “The nightlife owners will now feel freer to call the police,” Mr. Kelly said. “We see it as a win-win situation.”

The nightclub industry and city officials led by the City Council speaker, Christine Quinn, have been at odds in the past after a year-long effort to tackle problems with the city’s $9 billion nightlife industry, including underage drinking and unlicensed bouncers.

The crackdown, which included a sheaf of new local bills, came after the deaths of 24-year-old Imette St. Guillen and 18-year-old Jennifer Moore during a six-month period in 2006. Both young women were kidnapped, raped, and murdered in separate incidents as they left Manhattan bars. Some new measures to improve safety had met with resistance from nightclub owners.

Yesterday, police and nightlife leaders stood shoulder to shoulder at a news conference during which they unveiled the new list of 58 “best practices,” such as installing more hooks for hanging coats and sending all bar patrons, even celebrities, through metal detectors. “We have to meet in the middle here,” the president of the Night Life Association, David Rabin, a co-owner of Lotus, said.

A recommendation to use scanning machines for identifying fake IDs was also included. In the past, Ms. Quinn had proposed that ID scanners be required in all nightclubs, a proposal the Night Life Association protested.

Mr. Kelly said that as a part of the deal, a group of 400 police officers that work in areas with a high number of clubs were being trained to avoid ticketing establishments after responding to emergency calls.

In the past, nightlife leaders had complained that if a bar called to report a problem, such as a fight among its patrons, police would respond by giving the bar a ticket. Police may still ticket an establishment, but only after it has demonstrated repeated problems, Mr. Kelly said.