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Technicians licensed in the Commercial Animal Waste Technician (CAWT) license categories of Site Manager and Applicator must remain current on their certification (training).


A person wishing to become a licensed Applicator can only do so through online training. Applicators must complete the online application and training before they can apply manure. The required two hours of online training are included in the online application.

Site Manager

A person wishing to become a licensed Site Manager must pass the certification exam (80% or better) for an initial license to be awarded (see recertification requirements below). Each test contains multiple-choice questions based on the study manual. The test is an open book monitored exam. Site Managers are also licensed to apply manure.

Testing locations for the CAWT Site Manager are available in:

A Commercial Animal Waste Technician Site Manager Study Manual (PDF) is available.



A licensed applicator must renew their license annually. An applicator may recertify for one year by taking the online training at the time of renewal OR they may recertify for TWO years by attending an approved CAWT Site Manager workshop.

Site Manager

A licensed Site Manager must renew their license annually and must maintain current certification. Certifications need to be renewed every two years. 

Recertify by:

  • Attend an MDA approved recertification workshop within the year listed on the license card, or
  • Retest during the license renewal period (after renewal letter is received) and pay all required fees.

Approved Workshops

The MDA Approved Workshops table has a complete list of pesticide and CAWT workshops.