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: Hawaii Department of Health - Board of Certification of Public Water System Operators, administered through the Safe Drinking Water Branch
Local levels: WTP Operator-in-training; WTPO Grade 1, Grade 2, Grade 3, Grade 4.
Treatment certification and local grades are verified. The state directs candidates to WPI examination resources but does not explicitly identify Hawaii's exams as standardized rather than customized. No local-grade-to-WPI-class correspondence is established. OIT certification requires no examination and must not be routed as a separate standardized exam level.
No state-matched course is linked for this stream yet.
Updated August 27, 2026; identifies the Board of Certification of Public Water System Operators and separate Water Treatment Plant Operator forms. Its Exams section links to WPI examination resources without specifying standardized exam adoption.
Q3: 'Both DSO and WTPO exams are offered'; Q4 directs preparation to WPI examination resources. Neither answer specifies standardized versus customized exams.
Section 11-25-4(b) lists WTP Operator-in-training and WTPO Grades 1–4. Section 11-25-3(1): 'No exam is required for OIT certification.'
Exam route under review
Program authority: Hawaii Department of Health - Board of Certification of Operating Personnel in Wastewater Treatment Plants, administered through the Wastewater Branch
Local levels: Wastewater Treatment Plant Operator Grade 1, Grade 2, Grade 3, Grade 4 (HAR examination designations: grade I, II, III, IV); temporary/operator-in-training certification is also authorized without examination.
The state expressly labels its examinations ABC, but standardized versus customized ABC/WPI scope is not identified in the opened sources. PSI delivery is not evidence of standardized content. No Hawaii-grade-to-WPI-class mapping is established. This is a mandatory treatment-plant certification program, not proof of a collection certification.
No state-matched course is linked for this stream yet.
The 2026 schedule labels 'ABC Certification Operator Exam'; the page lists Grades 1–4, paper and computer-based examinations, and 'Reference Material for ABC WW Treatment Exams.' It does not call the Hawaii exams standardized.
Issued by the Board of Certification of Operating Personnel in Wastewater Treatment Plants; expressly concerns treatment-plant operators and new grade-level examinations.
Section 11-61-4 specifies grade I, II, III and IV examinations. Section 11-61-3(d)(1) permits temporary certificates for an operator in training without examination.
Exam route under review
Program authority: Hawaii Department of Health - Board of Certification of Public Water System Operators, administered through the Safe Drinking Water Branch
Local levels: DS Operator-in-training; DSO Grade 1, Grade 2, Grade 3, Grade 4.
Distribution certification and local grades are verified independently within the drinking-water program. A WPI preparation-resource link does not establish standardized distribution exams or a grade-to-WPI-class mapping. OIT is a no-exam certification.
No state-matched course is linked for this stream yet.
Provides a separate Distribution System Operator certification application and exam registration; identifies the water-system certification board. The exam link is to general WPI examination resources.
Q3 expressly confirms DSO examinations; Q4 supplies a WPI resource link but no standardized-exam designation.
Section 11-25-4(c) lists DS Operator-in-training and DSO Grades 1–4. Section 11-25-3(1) exempts OIT certification from examination.
Exam route under review
Program authority: No separate wastewater-collection certifying authority verified; the reviewed Hawaii Department of Health Wastewater Branch board sources establish treatment certification only
Local levels: No separate wastewater-collection certification grades verified.
Neither mandatory nor voluntary collection certification was established from official sources within the acquisition limit. Collection courses accepted for treatment education credit do not establish a separate collection certification or exam. Do not infer collection eligibility from drinking-water or wastewater-treatment evidence; absence here is not a finding that certification is not offered.
No state-matched course is linked for this stream yet.
The certification and examination provisions apply to wastewater treatment plant operators. Section 11-61-4 recognizes wastewater-collection coursework as education credit, not as a separate collection credential.
Describes the treatment-plant certification board and lists collection-system courses under continuing education; it identifies no separate collection examination or collection grade ladder.
Dedicated prep is not available or being sold yet.