Environmental Resources Management

Class II Permit

• What is the Class II Permit used for?
• Why is the Class II Permit necessary?
• What other permits are needed for the Class II Permit before I can start work?
• How long does it take to process the Class II Permit?
• How much are the Class II Permit fees?
• How long is the Class II Permit valid?
• Can I file for a time extension?

What is the Class II Permit used for?

The Class II permit is needed to control stormwater discharge to any surface water in Miami-Dade County.

At a minimum, the first inch of rainfall that is not absorbed by the ground is required to be retained on site, prior to discharge. Studies have shown this first inch is where 90% of the pollution is picked up by rainfall runoff.

If the applicant indicates that they cannot reasonably contain the whole storm event on site, even after retaining the first inch, the County will then allow a discharge to a body of water.

The Class II permit will require further treatment of the stormwater runoff before discharge to the water body.

Why is the Class II Permit necessary?

To control the pollution inherent in stormwater runoff.

What other permits are needed for the Class II Permit before I can start work?

Zoning approval from a local municipality or the Miami-Dade County (if you are in unincorporated Miami-Dade) is required prior to construction activity.

Depending on the type, size and location of development and/or construction, a Class I or IV permit might be needed, as well as a District Right-of-Way permit, and a Surface Water Management General Permit or Environmental Resources Permit (ERP). Each project is reviewed on its own merits as far as other permits being needed.

This question is intended to give you an idea of what other permits may be needed. Depending on your situation, you may need one or more of the above-mentioned permits. Additionally, there may be instances when a permit that is not listed here is required. We encourage you to call the contact number at the bottom of this page to discuss your particular case or to receive additional information.

How long does it take to process the Class II Permit?

Approximately 30 days.

How much are the Class II Permit fees?

Please see the Fee Schedule.

How long is the Class II Permit valid?

For one year and it is renewable. For more information, please call 305-372-6681.

• View the Class II Permit 

Can I file for a time extension?

Those requiring a time extension for a Class II, Class III, Class V or Class VI permit need to submit the following application 30 days before the permit expires. For more information, please call 305-372-6681.

• View the Time Extension Application 

Back to Top Page Last Edited: Thu Oct 13, 2011 11:31:10 AM