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: New Hampshire Department of Environmental Services (NHDES), Water Works Operator Certification Program
Local levels: Grade IA: combined treatment and distribution certification; treatment Grades I, II, III and IV. Operator-in-Training provisions for Grades I, II and III.
Mandatory water-works certification. Official sources establish the grades and availability of treatment Grades I–IV computer-based exams, but do not identify standardized WPI/ABC versus customized ABC or state-developed examinations. No local-grade-to-standardized-WPI-class mapping verified; Grade IA must not be mapped to Class I.
No state-matched course is linked for this stream yet.
Lists five grades from 1A through 4 and explicitly offers computer-based Treatment and Distribution grades I–IV exams.
Applications distinguish 'grade IA combined distribution and treatment certification' from Grade I–IV treatment or distribution certifications. The department administers written examinations; no standardized WPI/ABC scope is specified.
Dedicated prep not yet available
Program authority: New Hampshire Department of Environmental Services (NHDES), Wastewater Operations Section and Wastewater Operator Certification Committee
Local levels: Grade I, Grade II, Grade III and Grade IV; corresponding I-OIT, II-OIT, III-OIT and IV-OIT statuses.
Mandatory certification for public wastewater treatment plant operators. NHDES documents a distinct NH written-exam format: multiple-choice/matching and math-word problems at all grades, plus essays at Grades III and IV. A committee interview is required for qualifying applicants. This supports state-specific routing, not shared standardized WPI levels; the sources do not establish whether any individual questions originate with ABC.
No state-matched course is linked for this stream yet.
NHDES' Wastewater Operations Section oversees treatment-operator certification; public WWTP operators must be certified. Identifies Env-Wq 304 as the governing certification rules.
Lists Grades I–IV and their OIT statuses. Exam-format table specifies matching, math-word problems and Grade III–IV essays. Requires a Certification Committee interview for Grade II or higher, or Grade I operators in responsible charge, once during a career.
Exam route under review
Program authority: New Hampshire Department of Environmental Services (NHDES), Water Works Operator Certification Program
Local levels: Grade IA: combined distribution and treatment certification; distribution Grades I, II, III and IV. Operator-in-Training provisions for Grades I, II and III.
Distribution is separately identified in official rules and exam availability, not inferred from treatment certification. Standardized WPI/ABC adoption, customized ABC use and class correspondence remain unverified.
No state-matched course is linked for this stream yet.
Expressly provides Grade I, II, III or IV 'treatment certification, distribution certification, or both certifications,' with Grade IA combined.
Computer-based certification exams are available for 'Treatment and Distribution grades I-IV'; the page does not establish the examination developer or standardized scope.
Dedicated prep not yet available
Program authority: New England Water Environment Association (NEWEA), Collection System Certification Sub Committee - voluntary regional certification
Local levels: Grade I, Grade II, Grade III and Grade IV; OIT status available at all four grades.
NH-specific administrator information identifies this as voluntary NEWEA certification, separate from mandatory NHDES wastewater-treatment certification. The state-specific label denotes NEWEA's own regional program-specific examinations, not an NH government-authored exam: its June 2026 brochure explicitly assigns exam preparation to its Sub Committee. No standardized WPI/ABC adoption or shared-class mapping is established.
No state-matched course is linked for this stream yet.
'Certification for Collection System Operators is a voluntary program administered through the New England Water Environment Association'; identifies four grades and NEWEA's examination committee.
Sections 2.1, 3.3, 6.1 and 10 establish voluntary status, OIT at Grades 1–4, and Sub Committee preparation of examinations. Its exam section supplies a four-grade Need to Know outline and describes 100 multiple-choice questions.
Dedicated prep is not available or being sold yet.