Prove the backflow assembly passed, on the date the authority asks for.
A backflow assembly has to be tested every year and the report filed with the water authority, and the one nobody can produce is the one that fails the audit. CrewOS captures a test report on every assembly, the readings, the pass or fail, the make and location, and the certified tester, so the annual test is on file before anyone asks.

The backflow test got done, but the report was never filed.
The tester ran the assembly, it passed, and the paperwork stayed in the truck. A year later the water authority asks for the test report on that assembly and there is nothing on file. The work you did is not the same as the record the authority requires.
An unfiled backflow test is a violation, whether or not the assembly is sound.
Cross-connection control is enforced on the paperwork. A missing annual test report can mean a fine, a notice, and in the worst case the water purveyor shutting service to the building, whether or not the assembly actually passed. The commercial account that hired you to keep them compliant is the one that gets the letter.

You set the rules. CrewOS enforces them.
You decide what gets checked, on which jobs, and how hard the system holds the line.

Every test leaves a report of the readings and the result.
- 1The tester records the assembly on the service location, the make, model, size, and serial, and where it sits, so the report identifies the exact device.
- 2The test readings are captured as they are taken, the differential across each check, the relief valve opening point, and the pass or fail, alongside the tester's certification number, so the result is documented, not remembered.
- 3Each report is filed from the location and lands dated and attributed to a certified tester, so the annual test is on file the moment it is done, ready for the authority.
See it happen.

How do I keep a backflow test report on file for the water authority?
CrewOS captures a backflow assembly test report on every test, with the assembly make, model, size, serial, and location, the differential reading across each check, the relief valve opening point, the pass or fail, and the certified tester. Each is filed from the service location, dated and attributed, so the annual test the water authority requires is on file and provable.
The readings and the result are recorded on the assembly as the test happens, not written up later, so the report stands as the annual test record when it is asked for.
The annual test is on file, before the authority asks.
When the water purveyor asks for the test report, you produce it: this assembly, these readings, this result, on this date, by this certified tester. You answer with the record, not a promise that the test got done, and the account that would have taken the compliance letter stays covered.