N.H. Code Admin. R. He-P 4034.26
Each licensee shall maintain records of the calibrations of its radiation survey instruments that are required under He-P 4034.09 and retain each record for 3 years after it is made.
Source. #6942, eff 2-1-99; ss by #8800, INTERIM, eff 2-1-07, EXPIRED: 7-31-07 New. #8959, eff 8-7-07; ss by #10983, eff 11-24-15; ss by #14325, eff 7-19-25, EXPIRES: 7-19-35