Mont. Code Ann. § 17-7-501
Appropriations -- type
17-7-501 . Appropriations -- type. There are three types of appropriations within the meaning of "appropriation made by law" as used in Article VIII, section 14, of the Montana constitution:
(1) temporary appropriations enacted by the legislature as part of designated appropriation bills or sections designated as appropriations in other bills;
(2) temporary appropriations made by valid budget amendment; and
(3) statutory appropriations made by permanent law in conformance with 17-7-502 .