Blog / Permits and dot

Permits and dot

2 articles on permits and dot.

Traffic OS — a night lane closure with an arrow board and light trails from passing traffic

Aug 29, 2026

Lane Closure Restriction Windows and Curfews: The Hours You Cannot Work

Agencies publish hour-by-hour restrictions that decide when a closure is legal. How they are built, how to read one before you bid, and why the waiver process is a plan rather than a hope.

Traffic OS — a Pennsylvania interstate work zone with a speed enforcement unit on the shoulder

Aug 29, 2026

Pennsylvania Work Zone Requirements: What Contractors Need to Know

PennDOT Publication 213, the flagger certification requirement, 67 Pa. Code Chapter 212, and the automated speed enforcement program that made Pennsylvania work zones different from its neighbours.

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