During the testing process, collectors occasionally encounter disruptive, uncooperative, or obstructive donors whose actions or statements make clear they are refusing to participate in the test. Per §40.261(c) and §40.191(d), collectors are required to document and record actions they deem to be a refusal to test. This is usually done in the remarks section of the Alcohol Testing Form (ATF) (under Step 3) or Custody and Control Form (CCF) (under Step 2). Collectors are also required to advise the donor that failure to comply is a refusal to test. Collectors often simply write “Refused” in the remarks section to indicate unacceptable behavior has occurred. Since in many cases it is the employer who makes the official ‘refusal’ designation and is responsible for assessing the documentation provided by the collector, a detailed and descriptive statement of events is necessary. Short but descriptive narratives are essential, such as “donor did not provide a sufficient specimen and left the collection site before three hours elapsed,” “donor refused to empty their pockets” or “donor admitted their specimen was diluted with toilet water.” Collectors must not write only an employee “refused to test,” since this is too vague. By making genuinely descriptive remarks, collectors assist the MRO, Designated Employee Representative (DER), or reviewing physician in their decision-making responsibilities. Documentation of the events resulting in termination of the testing process is required to be included on the ATF and CCF. However, as the remarks section is relatively small, it is a good idea (but not required by Part 40) to include a supplemental account on a separate paper describing the circumstances, conversations, and any other information, and transmit documentation along with the relevant copies of the ATF and CCF.