Health Services

Commercial Permits

Commercial Permits


Link to Business Resources Opening or Relocating a Business? What you should know about the Department of Health approval process.

Have Questions? We have answers! Send us an email at or call the Office of Wastewater Management to schedule a meeting with one of our staff to discuss your proposed project at 631-852-5700.

If you are constructing a new or modifying an existing commercial, industrial, multiple residence or other building, you may need Department of Health Services Office of Wastewater Management approval to confirm the proposed or sewage disposal system will meet the requirements of Suffolk County’s Sanitary Code. This site contains important information regarding this process including applications, instructions, standards and guidelines to assist the applicant in completing the application process. Remember, submission of a complete application and design plan will result in a faster approval process.

Applications for Other Than Single-Family Dwelling

Application to Update an Existing Commercial Project

Final Approval for Other Than Single-Family Residence

Additional Information for Permits

Additional Resources