In the State of Maryland, a pool operator is required. The code is located Maryland Bathing Code. Title 10 DEPARTMENT OF HEALTH AND MENTAL HYGIENE Subtitle 17 SANITATION Chapter 01 Public Swimming Pools and Spas Authority: Health-General Article, §2-102, 2-104, 18-102, and 20-303, Annotated Code of Maryland, and U.S.C. §8003 Section Pool and Spa Operator Certification states:
“A. A person may not act as or perform the duties of a public pool or spa operator without a pool and spa operator certification card issued by the Secretary as required in §§B and G of this regulation.
B. The Secretary shall issue a 3-year public pool and spa operator certification card only to an individual 16 years old or older who has:
(1) Completed a 14-hour approved public pool and spa operator’s course or a course offered by the Secretary with a minimum grade of 70 percent on an approved written examination given following the completion of that course; or
(2) Presented proof of previous certification and has:
(a) Completed an approved 4-hour refresher course; or
(b) Passed a challenge exam offered by the Secretary.
G. The Secretary shall issue a 3-year limited public-use pool operator certification card to an individual 16 years old or older who has completed:
(1) An approved 4-hour limited public-use pool operator’s course and passed an approved written examination with a minimum grade of 75
Operators must follow state, county, city and local laws as well as federal laws pertaining to the operation and maintenance of pools and spas.”

Operators must follow state, county, city and local laws as well as federal laws pertaining to the operation and maintenance of pools and spas.

CPO Certification Maryland State Pool Forms


Baltimore County has updated its requirements to become a Baltimore County Pool Operator. The following are the updated requirements from the Department of Environmental Health Services:
Students must provide:

  • An original application (PDF application here along with instructions). Students will need to file the application and other supporting documents to the:

    Baltimore County EHS.
    9100 Franklin Square Drive, Suite 230
    Baltimore, MD 21237-3903
    410-887-3663 (for questions)
    Open Monday – Friday from 8 am to 4:30 pm

  • A legible copy of the certifying organization’s certificate:
    • NSPF is a certifying organization
    • Certificate is only valid for 3 years in MD (as well as for the rest of the state)
  • **NEW** A letter from the certifying agency (NSPF will supply to us to give to students)
  • A $25 fee for new Identification card, $15 for a replacement card

Code Excerpts

Criteria CPO Certification Maryland
What is to be recorded FAC, TAC, CAC, pH, ,temp, clarity, flow rate, gauge readings, bather load , backwash, injury, chemicals., broken eq. (daily), Alkalinity, Calcium, Cyanuric Acid (weekly for pools and daily for spas)
Water Testing Frequency Every 2 hours (pool and spa): 3x per day/has automated controller, limited public use, semi public pool
Chlorine Levels (Min-Max) CHLORINE: 1.5-10.0 PPM (Pool), 4.0-10.0 PPM (Spa)
BROMINE: 3.0-8.0 PPM (Pool), 4.0-8.0 PPM (Spa)
pH Levels (Min-Max) 7.2-7.8
Chlorine Test Kit Requirements DPD
pH Test Kit Requirements phenol red
Cyanuric Acid Levels (Min-Max) 30-100 PPM
Water Clarity 6″ black disk test
Turnover Rate POOL: 8 hrs
SPA: 30 minutes
WADING: 2  hrs
Bather Load (per bather) POOL: 1/12-15 sq ft, Diving – 1/300 sq ft
SPA: 1 person/per 9 square feet
WADING: 1 person/per 12 square feet
Depth Markings Deck & Pool
CPO® Required YES

Class Schedule

Date Location
2024 2024
April 16-17, 2024 Hagerstown, MD
November 12-13, 2024 Hagerstown, MD
November 14-15, 2024 Columbia, MD

To register by check, print and complete registration form and mail with check to Pool Operation Management, 68 Edwards Road, Brick, NJ 08723. Please make checks payable to Pool Operation Management.

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