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Indiana · original-source directory

Occupational licensing references
in Indiana.

258 records to help you investigate training and career routes.

Historical reference directory. These records come from the October 2024 occupational-license export linked by CareerOneStop. Individual record dates vary and can be much older. The names and authority links help you start a check; they do not establish today’s legal requirements or a complete list of regulated occupations. Some old source links may have moved.

Explore the records

241–258 of 258

Alphabetical by provider or license title. Related records are grouped only where their source identities match.

Wastewater Apprentice

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class A

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class A-SO

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class B

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class C

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class D

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class I

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class I-SP

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class II

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class III

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Wastewater Operator Class IV

Indiana Department of Environmental Management · Office of Water Quality, Wastewater Branch · Room 1255

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT1

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT2

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT3

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT4

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT5

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗

Water Treatment Plant Class: WT6

Indiana Department of Environmental Management · Office of Water Quality, Drinking Water Branch · Permit Certification and Capacity Section

Source record updated: 2021-05-11 · exported October 2024 · current status unverified

Check the listed authority or license source ↗