40.189—Where is other information concerning split specimens found in this regulation?

You can find more information concerning split specimens in several sections of this part:
§ 40.3—Definition.
§ 40.65—Quantity of split specimen.
§ 40.67—Directly observed test when split specimen is unavailable.
§§ 40.71-40.73—Collection process for split specimens.
§ 40.83—Laboratory accessioning of split specimens.
§ 40.99—Laboratory retention of split specimens.
§ 40.103—Blind split specimens.
§ 40.153—MRO notice to employees on tests of split specimen.
§§ 40.193 and 40.201—MRO actions on insufficient or unavailable split specimens.
Appendix D to Part 40—Report format for split specimen failure to reconfirm.