N.H. Code Admin. R. Saf-Mec 302.01
No person, business entity, or both, shall engage in the business or work as a fuel gas fitter, and/or plumber, fuel gas trainee, or plumbing apprentice unless the person, business entity, or both, are lawfully licensed as provided by;
Source. #10648, EMERGENCY RULE, eff 7-25-14, EXPIRES: 1-21-15; ss by #10761, INTERIM, eff 1-21-15, EXPIRES: 7-20-15; ss by #10847, eff 7-1-15 (from Saf-Mec 301.01)