40 C.F.R. § 180.1423
Calcium carbonate; exemption from the requirement of a tolerance.
Cite as 40 C.F.R. § 180.1423 (2026)
An exemption from the requirement of a tolerance is established for residues of calcium carbonate in or on all raw agricultural commodities when used in accordance with label directions and good agricultural practices. [91 FR 53198, Aug. 17, 2026]