KIAWAH ISLAND — You can bring your cellphone to the PGA, but if it rings on the course or you pull it out and start babbling, the phone police will get you.

Teed off about rain? Find out how weather might affect the PGA Championship

If rain continues at the Ocean Course, here’s what might be ahead for the PGA Championship:Monday finish The PGA Championship has been forced to a Monday finish three times in the past 36 years (2005, 1986 and 1976).54 holes The PGA has never been cut to 54 holes since going to stroke play in 1958.Suspended play Play is suspended often due to weather, with players forced to play more than 18 holes in one day.Read more about how the rain will affect the tournament on C1.

Tournament workers will be out in force walking with the crowds today to uphold the “no-chatting, no photograph” rule for most parts of the play grounds.

Texting and tweeting, however, are allowed — if done silently.

The phone gangs will be easy to spot: they’ll be the ones in the red caddie bibs.

The rules are this: Get caught once and the enforcers will mark a kindly “W” on your entry ticket denoting you’ve been issued a warning.

Get caught again and they’ll take your phone away. You’ll be able to get it back, though, but it means going to a trailer at the entrance/exit way.

PGA officials said the 10 or so marked “phone-use zones” set up around the course and away from the play area should suffice for anyone in dire need of making or taking a call.

“Phones ringing, or taking a photo can really affect play,” said Brett Sterba, championship director.

Not all forms of communication are taboo during the Thursday-through-Sunday rounds. The PGA will allow you to use hand-held devices on the course — as long as they’re quiet on mute or vibrate and not for photographs — for texting, emailing, using social media such as Facebook or tweeting.

You also can download the PGA course phone app, which officials are encouraging patrons to do.

Sterba also stressed that no private photography will be allowed during the competition.

The rules may alter how thousands of people rely on cell usage, but some of those on the course Wednesday said they’d adjust to see the championship play.

“It’s hard not to be on my cellphone,” said Citadel cadet Derek Dickey of Columbia, who said he’s always either calling work or his girlfriend.

“But for this, yeah,” he said about making do.