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Notice of availability.

FRA is issuing this notice to advise all interested stakeholders that it has issued and made available on its website a guidance document addressing requirements related to the submission of requests for waivers, applications to modify or discontinue a railroad signal system, and other special approval requests to FRA. The guidance document is intended to provide information regarding existing requirements and best practices when submitting requests for waivers, block signal applications, and other special approval requests to FRA.

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