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Mario Facio Salazar

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Mario Facio is a member of the Firm’s Environmental Practice Group in Mexico City. He has participated in multiple corporate and real estate projects, often advising on the regulatory component of such transactions. Mr. Facio was an active participant in the Fourth Annual International Arbitration Moot “Willem C. Bis,” which was held at the Juridicum of the Pace University in Vienna. He is a member of the Environmental Law Committee of the Mexican Company Lawyers Association.

On 11 March 2022, the Ministry of Environment and Natural Resources published in the Official Federal Gazette Mexican Official Standard NOM-001-SEMARNAT-2021 (“NOM-001/21”) that establishes maximum allowable pollutant limits for wastewater discharges into national receptive bodies.
NOM-001/21 will become effective on 11 March 2023, even though certain parameters contained in the standard will become effective in April 2023 and at the fourth anniversary of its entry into force (such as true color and acute toxicity). Upon becoming effective, it will replace NOM-001-SEMARNAT-1996 (“NOM-001/96”).
NOM-001/21 will have to be complied with by whoever discharges wastewater into a national receptive body, but not in the case of discharges into municipal rainwater collection or sewage systems because these discharges will continue to be regulated by NOM-002-SEMARNAT-1996.