14 CFR § 107.59
Refusal to submit to an alcohol test or to furnish test results
July 13, 2020
A refusal to submit to a test to indicate the percentage by weight of alcohol in the blood, when requested by a law enforcement officer in accordance with §91.17(c) of this chapter, or a refusal to furnish or authorize the release of the test results requested by the Administrator in accordance with §91.17(c) or (d) of this chapter, is grounds for:
(a) Denial of an application for a remote pilot certificate with a small UAS rating for a period of up to 1 year after the date of that refusal; or
(b) Suspension or revocation of a remote pilot certificate with a small UAS rating.