N.H. Rev. Stat. § 436:46
The commissioner shall make such tests for tuberculosis and brucellosis from time to time as he sees fit at the expense of the state. If any suspects shall show as the result of such tests he shall quarantine said animals or the herd premises or both; further, should any reactors to such tests be found, the entire premises shall be quarantined, reactors tagged, branded, appraised, slaughtered and paid for as provided by this subdivision. The reactor premises shall remain quarantined until reactors are legally removed, properly disinfected and a sufficient number of negative tests of remaining animals on said premises are determined by the commissioner to be sufficient proof that there is no longer any evidence of the disease present on the premises.
RSA 436:46
1985, 72:1, eff. July 1, 1985.