Until Sept. 30, dogs are allowed only on certain sections of Long Beach, and they must always be leashed. The state imposed these rules in 2010 to protect the nesting areas of shoreline birds. Leashed dogs are only supposed to go on Ryder Way and along the beach between the main parking lot and the day parking area. Last year, 72 dogs were spotted roaming into restricted areas at Long Beach, and 53 dogs were seen unleashed — the highest number of unleashed canines recorded at the beach since monitoring began in 2009, said Kerin McCall, Plymouth’s environmental technician. “It’s not the dogs’ fault,” she said. “It’s the owners.” Town officials are again trying to educate the public and enforce the regulations; violators can be fined up to $100. Last year, 93 warnings were given and one ticket was issued, said McCall. For more information about the leash law, contact the town’s environmental affairs department at 508-747-1620, ext. 201, or visit www.plymouth-ma.gov.