The retention period for testing records applies after the next test date is completed.

• A. Six months
• B. Three years
• C. One year
• D. Two years

Answer: (C)

The timing of keeping testing records is tied to the completion of the next test date. After that next test takes place, you retain the records for a full year. This one-year window ensures documentation is available through the entire recent testing cycle, which regulators or the authority having jurisdiction may review during audits or verifications.

For example, if the next test happens on March 10, 2025, you would keep all related testing records through March 10, 2026. The other durations don’t fit the standard practice: six months would be too short to cover the complete cycle, while two or three years would exceed the typical requirement.