N.H. Rev. Stat. § 339:60
No person engaged in the business of selling any hair, down, feathers, wool, cotton, kapok or other materials commonly used for filling such articles, shall ship any box, crate, package or other container in which is placed any such hair or other such material unless there is attached thereto a tag containing a statement of the contents of the package together with the name of the vendor, and, if the material has been used before, with the word, secondhand. Provided, that no person shall ship, sell or use for the purposes named in this subdivision any secondhand materials, not being prohibited under RSA 339:59 and deemed by the department of health and human services suitable for reuse, which have not been disinfected by a method or methods approved by the said department.
RSA 339:60
1925, 157:3. PL 162 :62. 1941, 162:2. RL 193:62. RSA 339:60. 1983, 291:1, I. 1995, 310:175, 181, eff. Nov. 1, 1995.