Source check: 2026-10-04. Shared WPI courses are linked only where the standardized exam and class match are confirmed. Local grades may not equal WPI class numbers. Your authority's current documents control.
Exam route under review
Program authority: Texas Commission on Environmental Quality (TCEQ), Occupational Licensing
Local levels: Class D Water; Class C Groundwater Operator; Class C Surface Water Operator; Class B Groundwater Operator; Class B Surface Water Operator; Class A Water Operator. Also Provisional Water Class D.
Mandatory licensing for public-water-system process-control duties, unless exempt. Classes C and B have separate groundwater and surface-water tracks; Class A is comprehensive. Official sources establish TCEQ licensing, local exam criteria and agency exam revision, but do not explicitly identify standardized WPI/ABC adoption, customized ABC provenance, or a local-to-WPI class correspondence. Exam-bank identity therefore remains unverified, not evidence of nonparticipation.
No state-matched course is linked for this stream yet.
Operators performing process-control duties in production or distribution must be licensed with TCEQ unless exempt. Lists Classes A–D, B/C Surface, Groundwater and Distribution, and Provisional Water Class D.
Publishes separate B/C Groundwater and Surface Water criteria. Class A requires knowledge of the Class B Groundwater, Water Distribution and Surface Water criteria. Criteria expressly include Texas licensing and drinking-water rules.
July 2022 statement: TCEQ's Occupational Licensing section 'has been revising and converting licensing exams' to CBT. This establishes agency involvement, not standardized versus customized exam provenance.
Exam route under review
Program authority: Texas Commission on Environmental Quality (TCEQ), Occupational Licensing
Local levels: Wastewater Class D; Wastewater Class C; Wastewater Class B; Wastewater Class A. Also Provisional Wastewater Class D.
Treatment licensing is a regulated program: the required chief-operator class depends on facility category. The official treatment exam outlines are explicitly Texas-focused, but they do not establish whether the underlying bank is state-authored or customized ABC, nor standardized WPI/ABC adoption or class equivalence. Do not infer wastewater exam identity from drinking-water evidence.
No state-matched course is linked for this stream yet.
Lists Wastewater Classes A, B, C, D and Provisional Wastewater Class D. Requires facility operation by a licensed operator at the required level or higher; directs applicants to training manuals and Texas licensing/operating rules.
Provides separate treatment exam criteria for D, C, B and A. Includes TCEQ permits, self-reporting, Chapter 217 design criteria and facility categorization; Class A specifically includes the domestic-permit '75-90 Rule.'
Exam route under review
Program authority: Texas Commission on Environmental Quality (TCEQ), Occupational Licensing
Local levels: Class C Water Distribution; Class B Water Distribution. Common water-system licenses: Class D Water and Class A Water Operator; also Provisional Water Class D. No separately named Distribution Class A or D in the opened criteria.
Distribution is within mandatory public-water-system licensing, unless exempt; the B/C distribution exams are distinct local specialties. Class D is foundational across water operations and Class A combines all three B specialties. No explicit standardized WPI/ABC scope or class mapping was established; local lettering must not be converted automatically to WPI Classes 1–4.
No state-matched course is linked for this stream yet.
Names Class B Distribution and Class C Distribution requirements separately from surface water and groundwater. Class A training includes Water Distribution; Class D is a general water license.
Class C Water Distribution criteria build on Class D; Class B Water Distribution builds on Class C Distribution. The outline includes Texas rules, storage/distribution maintenance, cross-connections, disinfection and math.
Exam route under review
Program authority: Texas Commission on Environmental Quality (TCEQ), Occupational Licensing
Local levels: Collection Class I; Collection Class II; Collection Class III.
Separate collection licenses are offered; no Class IV is listed. Direct supervisors of domestic collection operation/maintenance crews must hold either a wastewater collection license or a wastewater treatment license, with the required supervisory level satisfied. This is not simply voluntary certification. Roman numerals I–III do not prove correspondence to standardized WPI Classes 1–3; explicit exam provenance and mapping remain unverified.
No state-matched course is linked for this stream yet.
Lists Collection Classes I, II and III. States that direct supervisors must be licensed collection or treatment operators, and at least one collection supervisor must hold the class required for the system category.
Publishes collection-specific I, II and III exam criteria, including TCEQ staffing/categorization rules and Chapter 217. Class II includes water/sewer clearances; Class III includes alternative materials when clearances cannot be maintained, flow velocities, SCADA and preventive-maintenance programs.
Dedicated prep is not available or being sold yet.