About OWCP Form CA-35

The OWCP Form CA-35, titled “Evidence Required in Support of a Claim for Occupational Disease,” is used to gather documentation and information to support a claim for benefits under the Federal Employees’ Compensation Act (FECA) due to an occupational disease.


Who should use it:

  • Federal employees who believe they have contracted an occupational disease due to their job.
  • Examples of occupational diseases include:
  • Respiratory illnesses caused by exposure to dust or chemicals
  • Hearing loss from loud noise
  • Skin diseases caused by contact with irritants
  • Repetitive stress injuries related to your job as a federal worker

What information is required:

  • The OWCP form itself serves as a checklist, outlining various categories of evidence you should submit.
  • Some common types of evidence include:
  • Medical records documenting your diagnosis and treatment
  • Work history documentation showing your exposure to potential hazards
  • Witness statements corroborating your work environment and potential exposures
  • Material safety data sheets (MSDS) for any relevant chemicals you were exposed to
  • Expert medical opinions linking your disease to your work exposure

Where to get help:

Additional things to know:

  • Filing a complete and well-documented claim can significantly improve your chances of success.
  • It’s important to seek legal counsel if you have questions about the process or believe your claim has been wrongly denied.

It’s important for federal employees to follow the specific guidelines and procedures outlined by the OWCP and their employing agency when completing and submitting Form CA-35. Additionally, seeking guidance from the workers’ compensation coordinator or a healthcare provider can be beneficial in ensuring that all necessary information is included in the form. Keep in mind that procedures and forms may be subject to updates, so it’s advisable to refer to the most recent OWCP guidelines or consult with relevant authorities for the latest information.