Spray Foam Insulation License Requirements in Idaho

Licensing body: Idaho Division of Occupational and Professional Licenses (DOPL), Contractors Board

Idaho does not license insulation as a distinct trade and does not require a competency exam for general contracting — the state moved to a registration system administered by DOPL's Contractor Board. General registration is required to legally contract for construction work; secondary sources cite a roughly $2,000 labor-and-materials threshold for triggering the requirement, though this was not independently confirmed on the official DOPL page.

SPFA (Spray Polyurethane Foam Alliance) certification is not a legal requirement here — no state licensing board makes it a condition of licensure. It remains a voluntary industry credential that some manufacturers require for warranty coverage and that SPFA's Professional Certification Program (PCP) references in federal Unified Facilities Guide Specifications (UFGS) for government contracts.

General liability and workers' compensation insurance are commonly required for registration per secondary sources, though the official DOPL page did not itemize bonding specifics in our research. Registration carries a $120 fee on a biennial renewal cycle, confirmed on DOPL's site.