Maryland Hydrovac & Excavation Regulations
Excavation laws, 811 requirements, and licensing information for Maryland.
Maryland requires excavators to contact Miss Utility at least 2 business days before any excavation. The Maryland Underground Facilities Damage Prevention statute provides comprehensive rules for safe digging.
Hydrovac excavation is widely used in Maryland, particularly in the Baltimore-Washington corridor where dense underground infrastructure demands precision excavation methods.
Call Before You Dig: Miss Utility
Phone: 811 | Notice Required: 2 business days
Visit Miss Utility WebsiteTolerance Zone
Careful excavation using hand tools or non-destructive methods within 18 inches of marked facilities.
Key Regulations
Underground Facilities Damage Prevention
Primary statute governing notification, marking, and excavation safety.
Maryland Public Utilities Article 12-101 et seq.
Positive Response Requirement
Facility owners must provide positive response before excavation may begin.
Design Phase Notification
Project designers must also request utility locates during the design phase.
Penalties for Violations
Maryland imposes penalties for excavation violations.
Maximum Fine: $10,000 per violation
- ●Full liability for damages and restoration
- ●Potential suspension of contractor license
Licensing Requirements
- Maryland Home Improvement Commission license where applicable
- County-specific contractor licensing requirements
- Workers compensation and general liability insurance
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