21 CFR 1313.53 Waiver of modification of rules. [54 FR 31665, Aug. 1, 1989]https://api.chemreg.net/regulations/apr18-375_gmsds.pdf/viewhttps://api.chemreg.net/@@site-logo/ChemReg-branding.png
21 CFR 1313.53 Waiver of modification of rules. [54 FR 31665, Aug. 1, 1989]
