Job Roles That Commonly Require a TWIC Card?

17 hours ago
3 min read

These roles require a TWIC (Transportation Worker Identification Credential) because they involve access to secure, high-risk transportation and industrial areas where safety, national security, and regulatory compliance are critical.

Here’s the breakdown in plain terms:

Secure Access to Restricted Areas

TWIC cards are federally issued by the Transportation Security Administration (TSA). They verify a worker’s identity and background before allowing access to:

Ports and docks
Vessels and ships
Refineries and chemical plants
Rail yards and cargo terminals
National Security & Safety
Many of these sites handle:
- Hazardous materials
- Fuel and chemicals
- High-value or sensitive cargo
Requiring a TWIC card helps prevent theft, sabotage, terrorism, and safety incidents by ensuring only vetted individuals can enter these locations.
Aviation & Security Programs Overview

Category	Programs / Services
Airlines	Commercial and regional airline operations and compliance
Aviation Programs	TSA-regulated aviation security and compliance programs
Cargo Programs	Secure air cargo handling and screening programs
Known Crewmember®	Expedited security access for verified aviation crewmembers
Security Fees	TSA and aviation-related security fee processing
Training	Aviation security training and regulatory compliance education

ndirect air carriers (IACs) are persons or entities within the United States, not in possession of an FAA air carrier operating certificate, which undertake to engage indirectly in air transportation of property and uses for all or any part of such transportation the services of an air carrier.

TSA requires each IAC to adopt and carry out a TSA-approved security program that meets current TSA requirements and is renewed annually. See 49 CFR part 1548. TSA Principal Security Inspectors are the primary point of contact for the application process and approval of certification.

Persons or entities interested in becoming an IAC can submit an application online via the Indirect Air Carrier Management System. Once TSA receives the completed application, it may take approximately 90 to 120 days for final approval. For further information on the application process or any other cargo related information, please email your inquiry.

TSA requires aircraft operators, foreign air carriers, and IACs to conduct known shipper programs as required by their TSA-approved security programs. See 49 CFR parts 1544, 1546, and 1548. Through the Known Shipper Management System, TSA identifies and approves the known shipper status for qualified shippers to be able to transport their cargo on passenger aircraft. Aircraft operators, foreign air carriers, and IACs must comply with a range of specific security requirements to qualify their clients as known shippers. Shippers interested in transporting goods by air may contact their transportation service provider and request to become a known shipper. For additional information regarding the Known Shipper Management System, please email your inquiry.

Background Checks & Compliance

To receive a TWIC card, workers must pass:

A criminal background check
Identity verification
Immigration and eligibility screening

Federal regulations require employers to ensure workers meet these standards, especially in maritime and energy industries.

Industry Regulations

TWIC requirements are mandated under:

Maritime Transportation Security Act (MTSA)
TSA and U.S. Coast Guard regulations

Companies can face fines or loss of operating privileges if uncredentialed workers access secure facilities.

Even when not strictly required by law, many employers and clients require TWIC cards to:

Meet insurance and safety standards
Speed up site access
Reduce delays and security risks.
TWIC Card–Required Roles by Industry

Industry	Job Roles
Maritime & Shipping	Deckhands Barge Cleaners Tankermen Vessel Crew Members Boat Operators
Logistics & Transportation	Truck Drivers (Hazmat or Regional) Railcar Repair Technicians Shipping & Receiving Personnel
Energy & Industrial	Chemical Plant Workers Refinery Samplers Industrial Insulators Scaffold Builders
Security & Safety	Port Security Officers Gate Guards Safety Technicians
Technical & Maintenance	Machinists Electricians Instrument Technicians Hydraulic Technicians