> (a) A manufacturer (or importer), as defined in Sec. 181.3 of...

Manufacturer means any person engaged in:(1) The manufacture, construction, or assembly of boats or associated equipment; or(2) The importation into the United States for sale of boats, associated equipment, or components thereof.

> (b) A person who builds or imports a boat for his or her own
> use and not for the purposes of sale, must identify that boat with
> two hull identification numbers that meet the requirements of this
> subpart.