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Chile - Final Regulatory Action
Methamidophos CAS number:
10265-92-6
Date circular:
12/12/2021

Chemical name: O,S-dimethyl phosphoramidothioate

Final regulatory action has been taken for the category: Pesticide

Final regulatory action: The chemical is Banned

Use or uses prohibited by the final regulatory action:

Cancelled formulations by current FRA
Commercial name Active substance Use
MONITOR 600 Methamidophos 60%
MTD 600
MTD 600 SL Methamidophos Insecticide
M-600
HAMIDOP 600
RUKOFOS 60 SL
Canceled formulations prior to FRA
STANZA 600
TAMARON 600 SL Metamidophos Insecticide
BAYTHROID TM 525 SL
METAMIDOPHOS 600SL

The final regulatory action was based on a risk or hazard evaluation: No

Summary of the final regulatory action:

Cancelled all current authorisations of pesticides containing Methamidophos.
Import and manufacturing of pesticides containing Methamidophos is prohibited, and only distribution, export, sale, possession or use is allowed for a maximum of two (2) years as of 15 June 2019, or until the stocks are exhausted in the country, depending on which occurs first.
Possession and use of all pesticides formulations with active substance Methamidophos is prohibited, as of June 15, 2021.
Exceptionally, the introduction of Methamidophos analytical patterns, used to determine their presence in surveillance and monitoring programs, or in studies of pesticide residues in matrices related to agriculture, is allowed.
Infringements will be sanctioned as provided in Decree 3557 of 1980, (https://www.bcn.cl/leychile/navegar?idNorma=7178)
and under Law No. 18755 (https://www.bcn.cl/leychile/navegar?idNorma=30135).

The reasons for the final regulatory action were relevant to:

Date of entry into force of the final regulatory action: 15/06/2021