Final answer:
A FECA workers' compensation claim form should be submitted with Form CA-16 for the first treating physician. This form authorizes an injured federal employee to receive initial medical treatment and serves as documentation for the employer's authorization for medical care.
Step-by-step explanation:
A FECA workers' compensation claim form should be submitted with Form CA-16 for the first treating physician. The Form CA-16 is used to authorize an injured federal employee to receive initial medical treatment. It is typically issued when the injury is work-related and requires immediate medical attention. It serves as documentation for the employer's authorization for medical care, ensuring that the treatment will be reimbursed by the workers' compensation program.