FMCSA Overview of Drug and Alcohol Rules
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/overview-drug-and-alcohol-rules
FMSCSA Overview of 49 CFR Part 40
https://www.transportation.gov/odapc/part40
FMSCA Regulation 49 CFR Part 382
https://www.fmcsa.dot.gov/regulations/title49/part/382
FMCSA Overview Commercial Driver’s License Drug and Alcohol Clearinghouse
https://www.fmcsa.dot.gov/regulations/commercial-drivers-license-drug-and-alcohol-clearinghouse
FMCSA New Entrant Safety Resource Guide
https://ai.fmcsa.dot.gov/NewEntrant/Data/Docs/Safety%20Audit%20Guidebook.pdf
FMCSA Regulation 49 CFR Part 391
https://www.ecfr.gov/cgi-bin/retrieveECFR?gp=1&ty=HTML&h=L&mc=true&=PART&n=pt49.5.391
FMCSA Regulation 49 CFR Part 395
https://www.fmcsa.dot.gov/regulations/title49/part/395
FMCSA Regulation 49 CFR Part 387
https://www.fmcsa.dot.gov/regulations/title49/part/387
FMCSA Regulation CFR Part 396
https://www.fmcsa.dot.gov/regulations/title49/part/396
Maryland Department of Transportation COMAR Regulations
http://www.mdot.maryland.gov/newMDOT/Policy_Affairs/comar.html
FMCSA increases fines for violations of Motor Carrier Regulations
FMCSA Regulations CFR Part 49 Part 382 Owner Operator
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/owner-operator
FMCSA Overview of Drug and Alcohol Rules for Employers
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/overview-drug-and-alcohol-rules-employers