Water Quality Trading Program Home

Maryland Water Quality Trading

WQT Highlights:

  • February 15, 2019: The first available credits have been placed on the WQT Register.
  • January 23,2019:​ Credit needs are being placed on the WQT Market Board. If you're a potential seller, please visit the Market Board under the "Registry & Market" to see if there is a potential partner in your w​atershed.

​Program Description​

Maryland’s W​​​ater Quality Trading Program (WQTP)creates a public market for nitrogen, phosphorus and sediment reductions. This voluntary program is a collaborative effort between Maryland Department of the Environment (MDE) and the Maryland Department of Agriculture (MDA) to enhance the restoration and protection of the Chesapeake Bay and local waters by accelerating the pace and reducing the cost of implementation efforts.

This page provides a portal for MDE's certification of credits generated by wastewater, stormwater, on-site sewage disposal (septic systems) and oyster aquaculture. Certified credits can then be posted on the State marketplace, where applicable. It also provides information for how credits can be used to meet NPDES permit requirements.

Credits generated by agricultural practices will be certified by MDA and calculated through the Maryland Nutrient Tracking/Trading Tool (MNTT) found at www.mdnutrienttrading.com.

Water Quality Trading Webinar

On October 22nd, 2018, MDE hosted a webinar that provided an overview of the State's Water Quality Trading Program. You can access the presentation through the following download link: 


Contact Information

Please direct questions or comments to MDE's Water Quality Trading Program: mde.wqtrading@maryland.gov.

Questions or comments related to agricultural credits should be directed to MDA's Trading Administrator: NuTrade.mda@maryland.gov.​​​​​​