Bills making their way through the Rhode Island General Assembly to mandate a 42-hour average work week for firefighters wouldn’t immediately impact North Providence, says Mayor Charles Lombardi, as the town already has a 42-hour week in place, but it could “handcuff” officials during future negotiations.Lombardi said he feels badly for communities where negotiations are active, such as Coventry and Tiverton, but he said all communities may one day bear the cost of this bill, which passed by the Rhode Island House of Representatives last week and is now before the Senate.