California Air Resources Board

For Public Review and Feedback

California Air Resources Board (CARB) staff is developing draft standardized forms (“report templates”) for the most common reports, notifications, and requests, required for compliance with the Landfill Methane Regulation. Once finalized, regulated entities are required to use the provided templates for reporting beginning in 2027, as specified in section 95470(b)(9) of the amended Landfill Methane Regulation (LMR), effective January 1, 2027.

Draft templates are provided for regulated entities and the public to review reporting fields and organization of monitoring data and other required reporting information. Quarterly templates are available below for your feedback and additional templates are under development.

CARB staff welcomes feedback to help ensure that the forms are clear, complete, and practical before the templates are finalized. Feedback may include recommendations about column headings and labeling, missing information, terminology, instructions, data organization, and column order. When submitting feedback, please identify the specific template and the field or column to which your comment relates.

Draft Quarterly Monitoring Data Report (QMDR) Templates

Under section 95470(b)(4) of the amended LMR, Quarterly Monitoring Data Reports (QMDR) must be submitted in comma-separated values (.csv) format. Beginning in 2027, monitoring data covering each calendar quarter is due within 30 calendar days of the end of each quarter. The draft templates below are provided for public review and feedback purposes only.  Each download provides a separate CSV file for a specific type of record.

Submit your feedback

Feedback on draft QMDR templates is requested by December 7, 2026.

How to use the draft CSV templates

CSV files are a plain-text format for storing tabular data that do not contain spreadsheet formatting, formulas, or multiple worksheets. Users may open the files in a spreadsheet application, such as Microsoft Excel, and enter or paste sample data into the rows below the column headers. The column names and order of data must be maintained when entering data in the templates.

Surface Emissions Monitoring (SEM)

Records of all surface emissions monitoring data as described in section 95470(a)(1)(D).

• Surface Emissions Monitoring (SEM): DRAFT_20YY-QX_QMDR_SEM.csv
  • For records of surface emissions monitoring performed using the method in section 95471(c).
     
• Surface Emissions Monitoring – Unsafe-to-Walk (SEM-UtW): DRAFT_20YY-QX_QMDR_SEM-UtW.csv
  • For records of surface emissions screening using the unsafe-to-walk monitoring procedures specified in section 95471(d). Note: Required follow up monitoring using method 95471(c) for any readings above the screening threshold should be reported in the QMDR_SEM.

Component Leak Monitoring (CLM)

Records of all component leak monitoring data as described in section 95470(a)(1)(F).

• Component Leak Monitoring: DRAFT_20YY-QX_QMDR_CLM.csv

Well Monitoring

Records of all wellhead and well monitoring data as described in sections 95470(a)(1)(I) and (a)(1)(O).

• Wellhead Monitoring: DRAFT_20YY-QX_QMDR_Wellhead.csv
  • For reporting routine monitoring data from landfill gas collection wells, including liquid level monitoring.
     
• Enhanced Wellhead Monitoring: DRAFT_20YY-QX_QMDR_Enhanced.csv 
  • For reporting enhanced wellhead monitoring records using the procedures specified in section 95471(o), when required in response to operating conditions that trigger enhanced monitoring.
     
• Downwell Temperature Monitoring: DRAFT_20YY-QX_QMDR_DownwellTemp.csv
  • For reporting downwell temperature monitoring records, when required in response to operating conditions that trigger downwell monitoring.

Gas Collection and Control System (GCCS) Downtime

Records of gas control system downtime events exceeding one hour, including the date, time, and duration of each event.

• GCCS Downtime: DRAFT_20YY-QX_QMDR_GCCS-Downtime.csv