The first part of the previous message:

Here's some excerpts from the MSHA site. The 6 month time line for approvals of ERP's ends Dec. 15 but the way these guys work it could take longer.

How long would it take MSHA to approve an ERP regarding communication and electronic tracking systems?

Approximately four to six months.

It looks like MSHA intends to force the issue with mines that don't install or at least order systems.

Will MSHA issue citations for noncompliance with the PPL?