1. A batch fails solvent testing if the presence of one of the following solvents, at a minimum, is above the action level listed in the published International Conference on Harmonization of Technical Requirements for Pharmaceuticals for Human Use guidance for industry Impurities: Residual Solvents Q3C(R6) in effect as of January 1, 2018:

a. 1,4-Dioxane. b. 2-Butanol. c. 2-Ethoxyethanol. d. 2-Propanol (IPA). e. Acetone. f. Acetonitrile. g. Benzene. h. Cumene. i. Cyclohexane. j. Dichloromethane. k. Ethyl acetate. l. Ethyl ether. m. Ethylene glycol. n. Heptane. o. Hexanes. p. Isopropyl acetate. q. Methanol. r. Pentanes. s. Tetrahydrofuran. t. Toluene. u. Xylenes.

2. In addition to subsection 1, a batch fails solvent testing if the presence of one of the following solvents exceeds the limits in the following table:

	Parts Per Million (ppm)
Butanes	5,000
Ethylene oxide	50

Propane

5,000

3. A manufacturing facility must receive written approval from the department prior to using any solvent not listed in subsection 1 and subsection 2. The department shall include in the written approval an action level, not to be exceeded, that is to be used as the standard for solvent testing.

4. A manufacturing facility only may use a solvent that is at least ninety-nine percent purity or is food-grade.

5. If the samples do not pass testing standards for solvents, the manufacturing facility shall comply with section 33-44-01-52.

History: Effective April 1, 2018.