49 CFR § 40.167 - How are MRO reports of drug results transmitted to the employer?
(a) You must report the results in a confidential manner.
(b) You must transmit to the DER on the same day the MRO verifies the result or the next business day all verified positive test results, results requiring an immediate collection under direct observation, adulterated or substituted specimen results, and other refusals to test.
(1) You must fax, courier, mail, or electronically transmit a legible image or copy of either the signed or stamped and dated Copy 2 or the written report (see § 40.163(b) and (c)).
(2) Negative results reported electronically (i.e., computer data file) do not require an image of Copy 2 or the written report.
(d) In transmitting test results, you or the C/TPA and the employer must ensure the security of the transmission and limit access to any transmission, storage, or retrieval systems.