Are fuel tanks, float switches, and supervisory signals for interstitial spaces required to be tested annually?

Annual testing of fuel tanks, float switches, and supervisory signals for interstitial spaces is not mandated as a routine requirement. Instead, the regulations typically specify that these components must be monitored and maintained in accordance with manufacturer's guidelines and applicable codes, which may not necessitate annual testing for all scenarios.

These components may be monitored through regular inspections, and specific testing requirements may arise based on system status or environmental conditions. Therefore, while monitoring and maintenance are essential, the specification for annual testing does not apply universally, hence making the stance that they are not required to be tested annually accurate.

In practical terms, this understanding aligns with industry practices, ensuring that necessary checks are performed without imposing unnecessary testing that may not yield additional safety or compliance benefits.