There are two separate reporting requirements after any drug or alcohol offence.  Complying with one does not satisfy the requirement of reporting to the other FAA department. 

http://www.himsprogram.com/Content/HimsResources/ResourceLibrary/DUI%20Checklist.pdf

https://www.faa.gov/about/office_org/headquarters_offices/ash/ash_programs/investigations/airmen_duidwi/

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