The method provided in this chapter of perfecting and giving notice of security interests subject to this chapter is exclusive. Security interests subject to this chapter are hereby exempted from the provisions of law which otherwise require or relate to the filing of instruments creating or evidencing security interests.
N.H. Rev. Stat. Ann. § 261:29
Method of Perfecting Interest Exclusive
Source
Official source: New Hampshire General Court. Reproduced from public-domain New Hampshire statutes; confirm against the official source for the current text. Not legal advice.