; (B) in addition to the term of punishment for the violation of this section, impose a term of imprisonment not to exceed 5 years; and (C) no term of imprisonment imposed on a person under subparagraph (B) shall run concurrently with any term of imprisonment imposed on the person under any other provision of law. . 4. Endangering human life while illegally manufacturing controlled substance Section 417 of the Controlled Substances Act ( 21 U.S.C. 858 ) is amended to read as follows: 417. Endangering human life while illegally manufacturing controlled substance (a) In general Whoever, while manufacturing a controlled substance in violation of this title, or attempting to do so, or transporting or causing to be transported materials, including chemicals, to do so, creates a substantial risk of harm to human life shall be fined in accordance with title 18, United States Code, or imprisoned not more than 10 years, or both. (b) Rebuttable presumption For purposes of this section, there shall be rebuttable presumption that any violation of subsection (a) involving a detectable amount of N-phenyl-[1–(2-phenylethyl)–4-piperidinyl] propanamide, any analogue of N-phenyl-[1–(2-phenylethyl)–4-piperidinyl] propanamide, or the immediate precursor of such a substance, creates a substantial risk of harm to human life. . 5. Temporary scheduling of synthetic opioids Section 201 of the Controlled Substances Act ( 21 U.S.C. 811 ) is amended by adding at the end the following: (k) Temporary and permanent scheduling of recently emerged synthetic opioids (1) In general The Attorney General may issue a temporary order adding a drug or other substance to the definition of synthetic opioids if the Attorney General finds that— (A) the drug or other substance satisfies the criteria for being considered a synthetic opioid but is not listed in that section or by regulation of the Attorney General as being a synthetic opioid