The revised definition of "farm products" clarifies the distinction between crops and standing timber and makes clear that aquatic goods produced in aquacultural operations may be either crops or livestock. Although aquatic goods that are vegetable in nature often would be crops and those that are animal would be livestock, this Article leaves the courts free to classify the goods on a case-by-case basis. See Section 9-324 [Maine cite section 9-1324], Comment 11.

b. "Accession"; "Manufactured Home"; "Manufactured-Home Transaction." Other specialized definitions of goods include "accession" (see the special priority and enforcement rules in Section 9-335) [Maine cite section 9- 1335], and "manufactured home" (see Section 9-515 [Maine cite section 9-1515], permitting a financing statement in a "manufactured-home transaction" to be effective for 30 years). The definition of "manufactured home" borrows from the federal Manufactured Housing Act, 42 U.S.C. §§ 5401 et seq., and is intended to have the same meaning.

c. "As-Extracted Collateral." Under this Article, oil, gas, and other minerals that have not been extracted from the ground are treated as real property, to which this Article does not apply. Upon extraction, minerals become personal property (goods) and eligible to be collateral under this Article. See the definition of "goods," which excludes "oil, gas, and other minerals before extraction." To take account of financing practices reflecting the shift from real to personal property, this Article contains special rules for perfecting security interests in minerals which attach upon extraction and in accounts resulting from the sale of minerals at the wellhead or minehead. See, e.g., Sections 9-301(6) [Maine cite section 9-1301, subsection (6)] (law governing perfection and priority); 9- 501 [Maine cite section 9-1501] (place of filing), 9-502 [Maine cite section 9-1502] (contents of financing