Welcome to Job Mix Formula (JMF)!


What is JMF?

The JMF Verification Tool is a web based application developed by the California Department of Transportation, Materials Engineering & Testing Services (METS) to evaluate asphalt concrete mix designs. It allows contractors the ability to electronically submit JMF proposals and design data, and Caltrans District Labs the ability to verify JMFs. Contractor and Caltrans test results are submitted through the Data Interchange for Materials Engineering (DIME) and linked to JMFs via unique identification numbers.

What are the benefits?

The JMF Verification Tool provides a statewide database for automating JMF verification of test results. Being web based allows Contractors and Caltrans to have access to statewide JMF data. By expanding DIME to include the tests required for JMF verification we can provide statewide consistency in test records and allow stakeholders an efficient means to view real-time test data.

What is supported through the JMF Verification Tool?

The JMF Verification Tool is designed to accommodate:

  • Caltrans Standard Specifications
  • Mix designs for the following: Type-A HMA, RHMA-G, and OGFC
  • Integration with Contractor and Caltrans test data in DIME
  • Stakeholder access to test results and statewide JMF data
  • Contractor population of CEM-3511 JMF Proposal and CEM-3512 Hot Mix Asphalt (HMA) Design Data
  • Caltrans verification of Contractor data and population of CEM-3513 HMA Verification
  • Print functionality for populated CEM-3511, CEM-3512, and CEM-3513
  • Auxiliary tools for JMF renewals and modifications
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