Tester and cross-connection specialist

People use “backflow tester” and “cross-connection specialist” as if they were the same job. In the states that define both, they are not. The tester field-checks assemblies. The specialist, surveyor, or program administrator runs the water system’s program: finding hazards, deciding what protection is required, and keeping the records. One person can hold both credentials. Hiring the wrong one means the report the utility asked for may still be missing.

Oregon and California draw the line in writing

Oregon’s Drinking Water Services issues two cards. Backflow assembly tester certification is what a person needs to test assemblies, with a stated exception for an Oregon licensed plumber or journeyman. Cross-connection specialist certification is required for water systems with 300 or more service connections. The courses are different: a five-day tester course and a four-day specialist course. A specialist card does not, by itself, replace the tester card when the task is a gauge test of an assembly.

California’s Cross-Connection Control Policy Handbook, as described by the State Water Resources Control Board, requires both backflow assembly testers and cross-connection control specialists used by public water systems to be certified by a recognized organization. The Board’s recognition process uses a separate application for each role. That paperwork split is the point. The state does not treat “took a class” as one bucket that covers surveying a plant and testing a reduced-pressure assembly.

Utah and Washington use different titles

Utah’s Division of Drinking Water certifies Backflow Assembly Testers and Cross Connection Control Program Administrators. You must hold the Utah tester certification to test assemblies. The administrator, which the Division says used to be called a Grade 1 backflow technician, is the person trained to administer the program. Community systems were given deadlines to have a certified administrator, based on population. The tester certificate lasts three years. The administrator credential renews on a yearly continuing-education cycle. The Division’s page also says repair or installation may require a separate license from the Division of Professional Licensing. Three roles can show up on one job: administrator, tester, and the person licensed to repair.

Washington’s Department of Health certifies a Backflow Assembly Tester and a Cross-Connection Control Specialist. The tester rule, WAC 246-292-034, is the field test, the kit, and the report for assemblies that protect the public water system. The specialist rule, WAC 246-292-033, is the person who develops and implements the water system’s program. The Department publishes separate public lists. A specialist who does not also hold the tester certification is not the person the testing table describes.

Surveyor is the third word you may see

Massachusetts certifies a backflow prevention device tester and a cross-connection surveyor. The regulations say surveys are done by the surveyor and tests are done by the tester. A combination certification may do both. Connecticut’s Drinking Water Section likewise lists Backflow Prevention Device Testers and Cross Connection Survey Inspectors as different certifications. Rhode Island’s annual-report form says a certified cross-connection surveyor surveys the connection and selects the preventer, and that the person who tests must hold a certification from a program the Department of Health recognizes for that skill.

Arizona uses “general backflow tester” for the annual test and the test after installation, relocation, or repair. It uses “cross-connection control program specialist” for a person with direct responsibility for the program at a system serving more than 50,000 people. Both credentials come from an ADEQ-approved authority, and they are listed separately.

How to hire the right one

If the letter says the assembly must be tested, ask for the tester credential. If the letter says the building must be surveyed for cross-connections, ask for the specialist or surveyor credential. If you need a failed assembly repaired, ask whether the tester is also allowed to repair it. In Texas, testing and repair of ordinary services are both inside the Backflow Prevention Assembly Tester license, while fire lines are limited to permanent employees of an Approved Fireline Contractor. In Maryland, certifying the installation and testing of a mechanical device requires both Board-approved backflow certification and a master or journey plumber license.

Start with Who is allowed to test, then confirm the person on the roster described in How to verify a tester. Do not accept a business card that only says “certified” without the title the state uses.