proposed rule. methamidophos oxydemeton-methyl profenofos and trichlorfon proposed tolerance actions methamidophos. because methamidophos is a metabolite of acephate epa determined that residues of methamidophos resulting from the application of acephate should be included under the tolerance regulations for methamidophos as a pesticide. therefore epa is proposing to recodify the tolerances for methamidophos from permanent tolerances for residues of methamidophos o s-dimethyl phosphoramidothioate in or on food commodities as a result of the application of the insecticide methamidophos and a 2 for residues of methamidophos o s-dimethyl phosphoramidothioate in or on food commodities as a result of the application of the insecticide acephate. currently tolerances for related pesticide chemicals states that where tolerances are established for residues of o s-dimethyl phosphoramidothioate resulting from the use of acephate o s-dimethyl acetylphos-phoramidothioate and or o s-dimethylphosphoramidothioate on the same agricultural commodity the total amount of o s-dimethyl- phosphoramidothioate shall not yield more residue than that permitted by the higher of the two tolerances. however with the proposed change to include tolerances for methamidophos that result from the application of acephate under the methamidophos tolerance regulations there is no longer a need for the related pesticide chemical regulation and therefore epa is proposing to remove this stipulation. because there are no registered uses on broccoli cabbage cucumber eggplant and melon epa is proposing to revoke the tolerances on broccoli cabbage cucumber eggplant and melon. also on july 31 2002 epa published a final rule in the federal register in which it responded to the canadian horticultural councils comment asking that certain tolerances including those on broccoli and cabbage not be revoked. at that time the agency responded that it would not revoke the tolerances on broccoli and cabbage but would follow-u to see that data requirements were met should an interested party support those tolerances for import purposes. however in the interim period no interested party has declared an interest and committed in writing to do the required data to support the broccoli and cabbage tolerances for import purposes. however because there are registered acephate uses on brussels sprouts cauliflower celery and head lettuce epa is proposing to recodify the tolerances for brussels sprouts cauliflower and lettuce. also in order to reflect active registered use of acephate on head lettuce epa is proposing to revise lettuce to lettuce head. in addition because there is an existing tolerance for acephate use on cauliflower which has been reassessed in the acephate red at the same level such that residues from metabolism to methamidophos are expected to be no greater than 0.5 parts per million ppm epa is proposing to decrease the tolerance on cauliflower in from 1.0 to to 0.5 ppm. also this proposed level will harmonize with the codex mrl of 0.5 mg kg on cauliflower. at the time of the completion of the methamidophos ired a registrant submitted an import tolerance petition for peppers strawberries and squash. this petition has not been reviewed. because there is an existing tolerance for acephate use on peppers which in the acephate red has been reassessed at the same level such that residues from metabolism to methamidophos are expected to be no greater than 1.0 ppm epa is proposing to recodify the tolerance on pepper at 1.0 ppm. also this proposed level will harmonize with the codex mrl of 1.0 mg kg on sweet peppers.