# Backflow test due-date and reminder planner

Plan around an annual test anniversary or the deadline on your utility notice. Confirm the actual schedule with the utility. This tool displays dates only. It does not send reminders.

Use the tool on the [web page](https://backflowtesters.fyi/tools/backflow-test-reminder-planner). It works without JavaScript.

## How to use it

1. Choose which date should the plan use?.
2. Enter last passing test date.
3. Enter deadline on the utility notice.
4. Enter your chosen reminder lead time.
5. Read the result.

## How it works

Annual mode adds 12 calendar months to the last passing test date. Washington requires annual testing of covered assemblies and additional tests after listed events. The utility may require more frequent tests in the circumstances stated in the rule. Washington Legislature, WAC 246-290-490(7)(b), effective 2022-01-01, fetched 2026-11-10: https://app.leg.wa.gov/wac/default.aspx?cite=246-290-490

California section 3.3.3 requires at least annual field testing of covered assemblies and allows more frequent testing. California State Water Resources Control Board, Cross-Connection Control Policy Handbook, April 2026, fetched 2026-11-10: https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/docs/2026/cross-connection-control-policy-handbook-apr-2026.pdf

Notice mode uses the utility deadline you enter. Annual mode does not calculate a legal deadline. Both subtract your chosen calendar-day lead time. The lead-time input bounds are interface limits, not sourced legal periods.

Calendar months clamp to the last day of a shorter month. No email, calendar event or reminder is sent. Copy the result to your calendar. This is not a report submission or proof of compliance.

> Planning only. Your utility sets the actual deadline. Repair, relocation, installation or an incident may trigger a separate test. Confirm with the utility.

## Questions

### Does this replace my utility notice?

No. Use the notice or a date confirmed by your utility. Annual mode gives a planning anniversary only.

### Will this send me a reminder?

No. Copy the reminder date to your own calendar.