Get that "freak on" during a Bountiful High School dance and administrators won't bother asking you to turn it off. Instead, they will escort you from the building - assuming that you and your parents have signed the school's new "Dance Participation Regulations," that is.

The regulations prohibit not just "vulgar, seductive, or inappropriate movements" known as "freaking" or "grinding," but also any attire that might lead to that kind of behavior. That means no clothes deemed too tight, short, low-cut or anything stationed lower than the shoulder blades. Straps on dresses for formal dances must be at least two inches wide - spaghetti straps are banned - and sheer fabric is off-limits.

Off-limits for guys is any clothing deemed "slovenly" or worn "for protest, defiance, dissent, or displays obscene, illegal substances, or suggestive words or pictures," according to the regulations.

Dress codes set forth by Utah school districts are not new. High schools typically meet with community councils and local PTA boards to discuss ways to regulate and enforce student attire and behavior, said spokesmen for several school districts including Granite, Jordan and Salt Lake City. Having students and their parents sign these agreements, however, is a step few schools or school districts have taken - until now.

"We're just giving them some guidelines so we don't have to deal with issues that are uncomfortable for them, or us," said Ryck Astle, Bountiful High School principal. "Some kids will say, 'We didn't know that!' With this in hand we can say, 'Yes, you did.' "

The regulations were handed out during the second week of school, students said, with signed copies due back today. Students who don't sign won't be allowed at school functions.

Reception among students is mixed. Mike Posso blamed the regulations on an incident last year when a student showed up to the Homecoming dance dressed in a Speedo swimsuit and tie.

"I understand the dancing, because it has gotten physical, but they can't control how everyone dresses," said Austin Jimenez, a 15-year-old sophomore at the school.

Some students said the regulations set a double standard. "They make exceptions all the time for cheerleaders who walk around in tank tops and short skirts, but others who wear short skirts or shorts have to go home and change," said Beth Forsythe, also a 15-year-old sophomore. Others defend the move as good policy. Dances are social events, not a "hormone fest," said student Sam Egbert.

"I'm a religious person. It's Utah," he said. "I think [freaking] detracts from socializing." Aaron Sampson, a Bountiful High School sophomore, said he hasn't signed the agreement not so much out of protest, but because he rarely attends school dances.

"Even if it was a grind party, I wouldn't go," Sampson said. "But what kind of a guy gets turned on by girls' shoulders, anyway?"