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of the Commonwealth of Pennsylvania

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    Pennsylvania Milk Board

    Licenses, Certificates, and Reporting

    Get information on licenses and certificates issued by the Pennsylvania Milk Board and view lists of businesses with active licenses.

    The Pennsylvania Milk Board issues licenses and certificates for professionals in the dairy industry. Applications and renewals must be completed online by creating a GreenPort account and accessing the Milk Accounting and Regulatory System (MARS).

    All of the following licenses and certificates are defined under the Milk Marketing Law.  

    License lists and how to apply

    Milk dealers are licensed per sections 401–412 of the Milk Marketing Law. They must file a monthly report in MARS.

    You can learn how to apply for or renew a milk dealer license. You can also view a list of licensed milk dealers (updated April 9, 2026).

    Milk subdealers are licensed per section 513 of the Milk Marketing Law.

    You can learn how to apply for or renew a milk subdealer license. You can also view a list of licensed milk subdealers (updated April 15, 2026).  

    Milk haulers are licensed per section 550 of the Milk Marketing Law. Some milk haulers must file a monthly report in MARS.

    You can learn how to apply for or renew a milk hauler license. You can also view a list of licensed milk haulers (updated April 15, 2026).  

    Milk weigher/samplers must hold certifications from both the Pennsylvania Milk Board and the Pennsylvania Department of Agriculture.

    Pennsylvania Milk Board certification

    The Pennsylvania Milk Board regulates the economic aspects of the producer/handler relationship. Under section 603 of the Milk Marketing Law, the board certifies weigher/samplers to ensure that they are properly weighing producer milk and properly taking samples of producer milk for payment purposes.

    You can learn how to apply for or renew a milk weigher/sampler certificate. You can also view a list of certified milk weigher/samplers (updated April 15, 2026).

    Pennsylvania Department of Agriculture certification

    The Pennsylvania Department of Agriculture (PDA) regulates the sanitary aspects of the producer/handler relationship. The department administers the written exam for weigher/samplers and conducts field evaluations to ensure that their procedures meet sanitary guidelines.

    For information on PDA certification, see the PDA website.  

    Milk testers are certified per section 602 of the Milk Marketing Law.

    You can learn how to apply for or renew a milk tester license. You can also view a list of certified milk testers (updated April 15, 2026).