California Department of Food and Agriculture

Dairy Digester Research & Development Program

Dairy Digester Research & Development Program

2017-18 Dairy Digester Research and Development Program

CDFA’s Dairy Digester Research and Development Program (DDRDP) provides financial assistance for the installation of dairy digesters in California, which will result in reduced greenhouse gas emissions. CDFA received $99 million from the Greenhouse Gas Reduction Fund in 2017 (AB 109 - Budget Act of 2017) for methane emissions reductions from dairy and livestock operations. CDFA plans to allocate between 65-80% of the funds as incentives to support digester projects on California dairy operations. Remainder of the funding appropriation will incentivize development of non-digester practices to reduce methane emissions through the Alternative Manure Management Program (AMMP). DDRDP is guided by the Statement of Principles (PDF) of the California-Federal Dairy Digester Working Group. The Working Group is a partnership of state, federal and local agencies with the common goal of identifying and removing barriers to the wide adoption of dairy digester systems in California.

CARB now accepting public comments on the Draft Quantification Methodology for FY 2017-18 through December 4, 2017.

CDFA will use the revised QM in its upcoming DDRDP Request for Grant Applications (RGA). CDFA was appropriated $99 million for the DDRDP and its companion program, Alternative Manure Management Program (AMMP) in 2017. CDFA plans to release the next DDRDP RGA according to the schedule below.

CDFA DDRDP Timeline 2017-2018 (Tentative)

CDFA Release Request for Grant Applications

December 15, 2017

Application Workshops

January 2018

Grant Applications Due

January 2018

Application Review period

February – May 2018

Award Announcement

June 2018

*Timeline Subject to change.

2017 Dairy Digester Research and Development Program

Projects Selected for 2017 DDRDP Awards

The California Department of Food and Agriculture is pleased to announce eighteen projects selected to receive 2017 DDRDP funding.

2017 DDRDP grant application materials:

2016-17 DDRDP Public Comment Period

Agenda: Community Conversation regarding Disadvantaged Communities and Dairy Digester Research & Development Program; November 9, 2016

DDRDP Fact Sheet – Spanish

November 9, 2016 – Community Conversation Presentation

DDRDP Listening Sessions Presentation (November 17th, 21st, 22nd and 30th, 2016) – UPDATED

CDFA DDRDP Comments Received Dec. 2016 (** UPDATED 12/20/16)

CDFA released the DRAFT Request for Grant Applications (RGA) for a 10-day comment period from February 1, 2017 – February 14, 2017.

A webinar was held on February 6, 2017 to highlight key components of the draft RGA, including revised scoring criteria and changes from last round due to new legislation (SB 859). Click to view a copy of the DDRDP webinar presentation.

Comments submitted on the DRAFT Request for Grant Applications


About the Program

Dairy digesters are a renewable technology that uses livestock manure to produce methane, which is a renewable source of electrical energy generation and transportation fuel. The technology has many environmental and social benefits. More information on dairy digesters can be found on the CalEPA Dairy Digesters webpage and the USEPA AgSTAR Anaerobic Digestion webpage.

Download the Dairy Digester Research & Development Program Fact Sheet to learn more (PDF)


What's New?

Press Releases

DDRDP in the News


Contact Us

If you have questions about CDFA’s dairy digester and dairy methane reduction programs, please send an e-mail to