DOT Rule 49 CFR Part 40 Appendix F
Appendix F to Part 40—Report Format: Split Specimen Failure To ReconfirmMail, fax, or submit electronically to: U.S. Department of Transportation, Office of Drug and Alcohol Policy and Compliance, 1200 New Jersey Avenue SE, Washington, DC 20590.
Fax: (202) 366–3897....