https://wacclearinghouse.org/repository/professional/bib/index.cfm?pagenumber=2
WAC Bibliography - The WAC Clearinghouse
the clearinghousewacbibliography
https://www.fmcsa.dot.gov/regulations/drug-alcohol-testing/are-cdl-drivers-required-register-clearinghouse
Are CDL drivers required to register for the Clearinghouse? | FMCSA
Guidance on Clearinghouse registration requirements for drivers
to registerfor thecdldriversrequired
https://sapevaluation.org/how-are-substance-abuse-professionals-saps-required-to-use-the-clearinghouse/
How are substance abuse professionals required to use the Clearinghouse?
Jun 14, 2024 - substance abuse professionals use the Clearinghouse to report specific information about a CDL driver's return-to-duty (RTD) activities.
substance abusethe clearinghouseprofessionalsrequired