How long prior to monitoring system certification must the local agency be notified?

The notification to the local agency for monitoring system certification must be made at least 48 hours in advance. This requirement ensures that the local agency has adequate time to prepare for the certification process and can allocate the necessary resources for inspection and confirmation of the monitoring system's compliance with regulations. This timeframe helps facilitate a thorough and organized assessment of the systems in place, ensuring that they are functioning correctly and safely before the certification occurs.

The other options may not provide sufficient time for the local agency to effectively coordinate and execute the necessary evaluations, which could lead to rushed assessments or oversight in maintaining compliance with safety and environmental standards. Hence, a 48-hour notice strikes a balance between timely notification and adequate preparation.