You can find more information concerning laboratories in several sections of this part:
§ 40.3 - Definition.
§ 40.13 - Prohibition on making specimens available for other purposes.
§ 40.31 - Conflicts of interest concerning collectors.
§ 40.47 - Laboratory rejections of test for improper form.
§ 40.125 - Conflicts of interest concerning MROs.
§ 40.175 - Role of first laboratory in split specimen tests.
§ 40.177 - Role of second laboratory in split specimen tests (drugs).
§ 40.179 - Role of second laboratory in split specimen tests (adulterants).
§ 40.181 - Role of second laboratory in split specimen tests (substitution).
§§ 40.183-40.185 - Transmission of split specimen test results to MRO.
§§ 40.201-40.205 - Role in correcting errors.
§ 40.329 - Release of information to employees.
§ 40.331 - Limits on release of information.
§ 40.355 - Role with respect to other service agents.