1.1 Virginia DPOR Board Structure, License Categories & Scope of Practice

Virginia DPOR Board Structure, License Categories & Scope of Practice

Operating water and wastewater infrastructure in the Commonwealth of Virginia requires a license issued by a specific state board, in a specific category, at a specific classification. Candidates lose points on the licensing portion of the exam by blurring three separate things: the board that issues the credential, the class of the license, and the class of the facility. This section separates all three.

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1. Statutory Authority: DPOR & the WWWOOSSP Board

Occupational licensing in Virginia is administered by the Department of Professional and Occupational Regulation (DPOR). Within DPOR, authority over operators is vested in the Board for Waterworks and Wastewater Works Operators and Onsite Sewage System Professionals (WWWOOSSP Board) under Chapter 23 (Sect. 54.1-2300 et seq.) of Title 54.1 of the Code of Virginia.

The Board's operator rules are codified at 18VAC160-30, Waterworks and Wastewater Works Operators Licensing Regulations. Note the chapter title: onsite sewage system professionals are licensed by the same board but under a different chapter, so 18VAC160-30 does not govern them. The current version of 18VAC160-30 was amended effective January 16, 2026 (Virginia Register Vol. 42, Issue 8), and every fee, experience, and CPE figure in this guide reflects that amendment.

The Board's core functions are:

1. Entry standards - education, qualifying experience, and examination approval (18VAC160-30-60 through 18VAC160-30-140).
2. Examination administration - the Board approves applicants, then a contracted vendor delivers the examination (18VAC160-30-50 and 18VAC160-30-70).
3. Renewal, reinstatement, and CPE - Parts III and IV of the chapter.
4. Standards of practice and discipline - Part VI, which includes probation, monetary penalties, suspension, and revocation (18VAC160-30-290).

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2. Two Categories, Two Class Ranges

Virginia issues two independent license categories. The single most commonly missed fact on the licensing portion of the exam is that the two categories do not have the same number of classes.

Class 5 and Class 6 are waterworks-only. Table 1 of 18VAC160-30-110 labels those two rows "(Waterworks Operator Only)". There is no Class 5 or Class 6 wastewater works operator license in Virginia.

18VAC160-30-10 defines classification as "the division within each category of license as it relates to the classified facility," and states plainly that "Class 1 represents the highest classification for each category of license." Virginia therefore runs descending: 1 is the top, and the number rises as complexity falls.

Terminology trap - license class vs. facility class. Virginia writes license classes in Arabic numerals (Class 1 through Class 6). Wastewater treatment works are classified by DEQ in Roman numerals (Class I through Class IV) in Table 1 of 9VAC25-790-290. That is why 18VAC160-30-360 says a "Class 4 wastewater works licensee may operate any wastewater works classified... as a Class IV treatment works." Arabic = the person's license. Roman = the DEQ facility rating. Waterworks facilities, by contrast, are classified by VDH in Arabic numerals (12VAC5-590-461), so waterworks has no numeral mismatch at all.

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3. Scope of Practice: What Each License Lets You Operate

18VAC160-30-370 (waterworks) and 18VAC160-30-360 (wastewater works) are written as a simple downward-inclusive ladder: a licensee may operate a facility at the licensee's own class and every class below it in the same category.

Two boundaries the exam tests:

• The ladder never crosses categories. A Class 1 waterworks license authorizes nothing at a wastewater works. An operator who wants to run both must hold both licenses, renew both, and complete CPE for both.
• The ladder never runs upward. A Class 3 waterworks licensee may not operate a Class 2 or Class 1 waterworks, even temporarily, even under supervision. Under 18VAC160-30-90 A, "No individual will operate a waterworks or wastewater works without possessing a valid category of license issued by the board in a classification equal to or greater than the classification of the applicable waterworks or wastewater works."

"Operate" is a defined term, not a job title. 18VAC160-30-10 defines it as "the act of (i) placing into or taking out of service a unit process or (ii) making or causing adjustments in the operation of a unit process at a waterworks or wastewater works." An unlicensed helper may wash down a basin or grease a bearing; the moment that person decides to change a coagulant dose, take a filter offline, or shift RAS rate, the person is operating and must be licensed.

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4. The Operator in Responsible Charge (ORC)

The operator in responsible charge is the individual the facility owner designates to have "the duty and authority to operate a treatment works" (9VAC25-790-10, "responsible charge"). VDH uses a parallel construction for waterworks. The ORC must hold an active license in the correct category at a classification equal to or higher than the facility's classification.

Duties the exam associates with the ORC

1. Process control decisions - chemical dosing, disinfectant residual targets, filter backwash initiation, dissolved oxygen setpoints, and return and waste activated sludge rates.
2. Monitoring and sampling - ensuring required samples are collected on schedule, by approved methods, and analyzed within holding times.
3. Records - maintaining accurate daily operating logs. Falsifying records is an independent ground for discipline under 18VAC160-30-320.
4. Notification - reporting exceedances, unpermitted bypasses, and treatment failures to VDH or DEQ. Under 12VAC5-590-461 B, if a classified waterworks is without a required operator, the owner must notify VDH "as soon as practical but no later than 24 hours."
5. Public-first duty - 18VAC160-30-340 A states the licensee's "primary obligation... is to the public," and if the licensee's judgment on a substantial threat to public health is overruled, the licensee must inform the employer of the consequences and notify appropriate authorities.

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5. Provisional Licensure (18VAC160-30-120)

Virginia's provisional license is narrower than candidates usually assume. It is not a trainee permit and it is not a temporary operating authority.

• What it is for. 18VAC160-30-120 lets an applicant meet the experience requirement of 18VAC160-30-110 using experience gained as an operator or operator-in-training at a nonclassified facility, provided the nonclassified facility is comparable in size and treatment process to a classified facility and the work provided comparable experience.
• Distribution-only experience. Experience limited to operating and maintaining water distribution systems counts only toward a Class 5 or Class 6 waterworks license (18VAC160-30-120 and 18VAC160-30-95 C). Experience limited solely to nonoperating duties is not counted at all.
• The hard limit. 18VAC160-30-90 B: "Provisional licensure alone will not authorize an individual to operate a classified waterworks or wastewater works facility." A provisional licensee cannot serve as ORC of a classified plant.
• Converting to a full license. A provisional license holder may apply for the corresponding full license after demonstrating 50% of the experience required by 18VAC160-30-110.

There is no two-year expiration written into 18VAC160-30-120. What does carry a two-year clock is examination eligibility: under 18VAC160-30-70 B, an applicant who does not achieve a passing score within 24 months of the Board's approval must submit a new application.

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6. Reciprocity for Out-of-State Operators (18VAC160-30-80)

Virginia does not grant license-for-license reciprocity. 18VAC160-30-80 states that an applicant holding an active, current license or certificate in another jurisdiction who meets the requirements of the chapter, "including having equivalent experience and education, must pass a board-approved examination to become licensed." An incoming operator therefore still applies to the Board, still documents experience and education, and still sits the Virginia-approved examination for the class sought.