Workers’ Compensation · Primary-source case analysis

Thomas: Full Faith and Credit Did Not Bar a Supplemental Workers’ Compensation Award

By Aneeta Mishra and Timothy Chan

Published August 28, 2026

Thomas v. Washington Gas Light Co. involved an employee injured in Virginia who received a Virginia compensation award and later obtained additional benefits under District of Columbia law.

Both jurisdictions had authority over aspects of the employment

The injury occurred in Virginia, while the employment relationship also had substantial District of Columbia connections.

The first tribunal decided only rights under its own law

Virginia’s agency lacked authority to adjudicate the worker’s separate entitlement under District of Columbia law.

Full Faith and Credit did not extinguish the second claim

A plurality concluded that the first award could not preclude a fresh adjudication of rights the first tribunal could not decide.

Credit remained necessary

The second jurisdiction could supplement benefits, but payments already made had to be accounted for to avoid duplicate recovery.

Key takeaways

• Map every jurisdiction’s employment and injury contacts.
• Identify exactly what the first tribunal had authority to decide.
• Calculate credit for all benefits already paid.
• Analyze current statutes and fractured-opinion limits before asserting preclusion.