; or (3) employs or hires any person under 18 years of age to manufacture, produce, distribute, dispense, administer, or deliver marihuana. . 2. Transportation safety offenses Section 409 of the Controlled Substances Act ( 21 U.S.C. 849 ) is amended— (1) in subsection (b), in the matter preceding paragraph (1)— (A) by striking A person and inserting Except as provided in subsection (d), a person ; and (B) by striking subsection (b) and inserting subsection (c) ; (2) in subsection (c), in the matter preceding paragraph (1)— (A) by striking A person and inserting Except as provided in subsection (d), a person ; and (B) by striking subsection (a) and inserting subsection (b) ; and (3) by adding at the end the following: (d) Exception Subsections (b) and (c) shall not apply to any person who possesses, or possesses with intent to distribute marihuana in compliance with section 710. . 3. Distribution to persons under age 21 Section 418 of the Controlled Substances Act ( 21 U.S.C. 859 ) is amended— (1) in subsection (a), in the first sentence, by inserting and subsection (c) of this section after section 419 ; (2) in subsection (b), in the first sentence, by inserting and subsection (c) of this section after section 419 ; and (3) by adding at the end the following: (c) Subsections (a) and (b) shall not apply to any person at least 18 years of age who distributes medicinal marihuana to a person under 21 years of age in compliance with section 710. . 4. Rule of construction (a) In general Conduct in compliance with this Act and the amendments made by this Act— (1) shall not be unlawful; (2) shall not constitute trafficking in a controlled substance under section 401 of the Controlled Substances Act ( 21 U.S.C. 841 ) or any other provision of law