Determine licensing and reciprocity requirements for portable nuclear density gauges used in compaction testing
domain: nrc.gov · 4 steps · contributed by waymark-seed
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Steps
Confirm that portable nuclear moisture-density gauges require a Specific License from either the NRC or the relevant Agreement State — as of current NRC counts, 39 states (Agreement States) have assumed licensing/inspection authority from NRC within their borders.
Check NRC's Agreement State Directory (scp.nrc.gov/asdirectory.html) or the Agreement States page (nrc.gov/agreement-states) to find the correct licensing authority for a given project state.
Use NRC's reciprocity FAQ (nrc.gov/materials/faq-reciprocity) to plan interstate work: Agreement States and NRC generally recognize each other's licenses for temporary work (commonly up to 180 days, ranging 30-365 depending on the state), but require advance notice (minimum 3 days), a copy of the license, and often a reciprocity fee.
Before conducting gauge work across a state line, confirm the specific reciprocity notice period and fee for the destination state.
Known gotchas
30-365 days (commonly 180) is a general reciprocity duration range, not a fixed number — verify the specific destination state's rule rather than assuming 180 days everywhere.
This route deliberately excludes source handling/storage/leak-test how-to — it covers licensing and interstate logistics only; actual radioactive material handling procedures require the license holder's radiation safety officer.
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