9 February 2023

Deadline To Comply With Requirements Of Mexico's Wastewater Disposal Standard Fast Approaching

Foley & Lardner


Foley & Lardner LLP looks beyond the law to focus on the constantly evolving demands facing our clients and their industries. With over 1,100 lawyers in 24 offices across the United States, Mexico, Europe and Asia, Foley approaches client service by first understanding our clients’ priorities, objectives and challenges. We work hard to understand our clients’ issues and forge long-term relationships with them to help achieve successful outcomes and solve their legal issues through practical business advice and cutting-edge legal insight. Our clients view us as trusted business advisors because we understand that great legal service is only valuable if it is relevant, practical and beneficial to their businesses.
Beginning March 2023, all businesses operating in Mexico regardless of size will need to comply with new requirements for wastewater discharge into rivers, basins, watercourses...
Mexico Environment
To print this article, all you need is to be registered or login on

Beginning March 2023, all businesses operating in Mexico regardless of size will need to comply with new requirements for wastewater discharge into rivers, basins, watercourses, other bodies of water, and into any type of surface.

Mandatory standard NOM 001 SEMARNAT 2021 (NOM 001 of 2021 or Wastewater Standard) that deals with permissible pollutant limits in wastewater discharged into surface and groundwater bodies goes into effect on March 11, 2023 (See March 11, 2022 Federal Official Gazette).

NOM 001 of 2021 replaces NOM 001 of 1996 that routinely allowed for underreporting of pollutants in wastewater according to government sources. NOM 001 of 2021 is more stringent and includes other contamination standards such as "true water color" and "water toxicity."

The new wastewater standard includes a Voluntary Fulfillment Program that could extend compliance with NOM 001 of 1996 obligations until March 2027 (See December 5, 2022 Federal Official Gazette). The supplemental program has specific templates to be completed exclusively during the period March 11, 2023 through April 2, 2023.

The Voluntary Fulfilment Program consists of self-determined modifications by a company of its facilities or production processes so that it may attain full compliance with NOM 001 of 2021 by March 2027. During this period, reports must be submitted twice a year to authorities to ensure progress towards compliance. If the supplemental program is not timely requested, or if the proposed modifications do not proceed as scheduled, full compliance with NOM 001 of 2021 will be required immediately.

There are a number of government authorities behind this new mandatory standard with the Mexican National Water Commission (known as CONAGUA) leading the charge. There is the possibility of early face-to-face engagement with authorities to discuss fulfillment and compliance with the new environmental obligations.

The content of this article is intended to provide a general guide to the subject matter. Specialist advice should be sought about your specific circumstances.

See More Popular Content From

Mondaq uses cookies on this website. By using our website you agree to our use of cookies as set out in our Privacy Policy.

Learn More