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§142.64 Variances and exemptions from the requirements of part 141, subpart H -- Filtration and Disinfection.
(a) No variances from the requirements in part 141, subpart H are permitted.
(b) No exemptions from the requirements in §141.72 (a)(3) and (b)(2) to provide disinfection are permitted.
[54 FR 27540, June 29, 1989]