PHMSA Regulatory Compliance FAQs
The HSD is a weather-resistant instrument that can withstand weather conditions and abnormal considerations that are safe for testing.
MMT has developed the framework for an Alternative Sampling Plan that meets the requirements of 192.607(e)(5), which allows operators to benefit from the reduced uncertainty of the HSD process to potentially reduce the required number of test locations to verify material grade for a pipeline population. To be implemented, this approach must be submitted to PHMSA through the notification process outlined in 192.18. Contact the MMT Reporting group () to discuss details of this statistical process and next steps.
