Pennsylvania's Industrial Stormwater General Permit Runs on a Five-Year Cycle, and Each New Edition Can Change What Your Facility Has to Do to Stay Covered
PAG-03 is Pennsylvania's general permit for stormwater that leaves industrial sites and heads for nearby waters. A general permit is one permit that DEP writes once and then lets many facilities join, instead of writing a separate permit for each one. The catch is that the permit has an expiration date, and your coverage rides along with it. DEP issues PAG-03 for five years at a time, the edition in force today runs through March 23, 2028, and when DEP reissues it, facilities that are already covered usually have to do something to stay covered.
This article walks through how the five-year cycle works, what happened the last time DEP reissued PAG-03, what tends to change in a new edition, and how to get ready for the next one without scrambling. If your facility is covered and you'd like a second set of eyes on your plan, you can reach out to RMA at any point.
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TL;DR
PAG-03 is issued for a five-year term, and the current edition expires on March 23, 2028. Your coverage is tied to that edition, not to the date DEP approved you. When DEP reissues the permit, existing permittees may have to submit a new Notice of Intent, which is the form that tells DEP you want to stay covered, as they did in 2023. A new edition can also change sampling, benchmarks, best management practices, and plan requirements, so the smart move is to watch the Pennsylvania Bulletin, read the draft when it appears, and update your plan and procedures before the new permit takes effect.
How Long Does PAG-03 Coverage Last in Pennsylvania?
The short answer is five years per edition of the permit, and the clock belongs to the permit, not to you. DEP issues PAG-03 as a general permit with a fixed term, and the permit itself says it's effective for a term not to exceed five years. The edition in force today became effective on March 24, 2023, and it expires on March 23, 2028. If DEP approved your coverage in 2024, you didn't get a fresh five years. You got coverage under the current edition for whatever time it has left.
The other routes into industrial stormwater coverage run on their own clocks. An individual NPDES permit, which is a permit written for one facility instead of shared among many, is generally issued for five years, and DEP expects a renewal application at least 180 days before expiration if you'll keep discharging. A No Exposure Certification, the paperwork route for facilities that keep every industrial material and activity indoors or under roof, also has to be renewed every five years. We cover how the three options compare in our guide to general, individual, and no-exposure NPDES permits.
| Route |
How long it lasts |
What carries you forward |
| PAG-03 coverage |
Until the current edition expires on March 23, 2028 |
Whatever DEP requires when it reissues the permit, which was a new Notice of Intent in 2023 |
| Individual NPDES permit |
Generally five years from issuance |
A renewal application filed at least 180 days before expiration |
| No Exposure Certification |
Five years, with the expiration date shown on DEP's approval letter |
A renewal request, generally due well ahead of that expiration date |
How Does DEP Reissue the PAG-03 General Permit?
DEP doesn't swap in a new permit overnight. To reissue or modify a general permit, DEP publishes notice of a draft in the Pennsylvania Bulletin, takes public comment, and then publishes notice of the final version. PAG-03 is also an NPDES permit under the federal Clean Water Act, so EPA reviews it too. During the last cycle, EPA objected to the draft on February 22, 2022, and DEP revised the permit and published a new draft before finalizing it.
That process can run long. The 2016 edition was set to expire on September 23, 2021, and DEP administratively extended it twice while it worked through the draft. The final reissued permit wasn't published until December 24, 2022, and it took effect on March 24, 2023. While the extension was in place, DEP said it couldn't authorize new coverage under PAG-03 until a new edition was issued, which left new facilities choosing between an individual permit and a No Exposure Certification. The table below lays out how the last cycle played out.
| Date |
What happened |
| September 24, 2016 |
The 2016 edition of PAG-03 took effect |
| September 23, 2021 |
The original expiration date, after which DEP administratively extended the permit twice |
| February 22, 2022 |
EPA objected to the draft, and DEP made changes and re-drafted |
| December 24, 2022 |
DEP published notice of the final reissued permit in the Pennsylvania Bulletin |
| March 23, 2023 |
Deadline for existing permittees to submit a Notice of Intent |
| March 24, 2023 |
The reissued permit took effect |
| July 1 through December 31, 2023 |
First monitoring period with the new parameters added to existing permittees' eDMRs |
| March 23, 2028 |
Expiration date of the current edition |
Nobody can say today exactly when the next draft will appear. What the last cycle shows is that the draft stage can take longer than planned, and that the window between a final notice and a deadline can be short. Both are good reasons to know your dates before the notice shows up.
What Did Existing PAG-03 Permittees Have to Do in the 2023 Reissuance?
When the 2023 edition was published, existing permittees had to submit a new Notice of Intent, or NOI, by March 23, 2023 to stay covered. An NOI is the application form that tells DEP which facility is asking for coverage and which stormwater discharges it's covering. From the Bulletin notice on December 24, 2022 to that deadline was 89 days, with the holidays in the middle. Facilities that got their NOI in on time could keep discharging under the reissued permit. Law firm and consulting summaries from that cycle also noted that current permittees didn't have to send a fee with the renewal NOI.
Some facilities had homework before they could file. Because the new edition added monitoring parameters, attorneys advising permittees at the time pointed out that applicants needed to work out whether extra sampling and analysis had to be done before the NOI was due. A facility that learned about the reissuance in February had very little room to schedule a storm, get samples to a lab, and wait on results.
The cycle before that one worked differently. DEP's fact sheet for the 2016 edition says permittees with coverage under the previous permit were automatically covered by the reissued permit on the date it was published in the Pennsylvania Bulletin. So there's no standing rule you can count on. Each edition sets its own transition, and the notice that goes with it spells out what existing permittees must do and by when.
What Can Change in a Reissued PAG-03 Permit?
A reissued permit can change anything from a benchmark to a reporting date. DEP said it tried to keep the 2023 edition consistent with the one before it where it could, and the changes that did come with it show the range of what a new edition can touch. Monitoring requirements, best management practices (BMPs, the physical controls and housekeeping habits that keep pollutants out of stormwater), response levels, and inspection procedures all moved.
| Area |
What the 2023 edition changed |
What permittees had to update |
| Monitoring parameters |
Total nitrogen and total phosphorus were added to every industry appendix, starting with the July 1 through December 31, 2023 monitoring period |
Lab analysis lists and eDMR entries |
| Benchmark response |
Response levels for continuing benchmark exceedances were increased |
Corrective action tracking and plan updates |
| BMPs |
New and expanded BMPs, including general ones and sector-specific ones |
Site practices and the PPC Plan |
| Valve-controlled discharges |
A visual inspection of accumulated stormwater before release, and samples within the first five minutes once discharge starts |
Written procedures and staff training |
| Annual reporting |
The annual report is due to DEP by March 23 for each remaining year of coverage |
Calendars and recordkeeping |
One change tends to ripple into several documents. A new sampling parameter lands in your lab order, your eDMR submissions, and the sampling section of your plan. A new benchmark response level changes what you do after a bad result, which is something we get into in our article on benchmark values versus effluent limits. And since PAG-03 facilities in Pennsylvania keep a PPC Plan, short for Preparedness, Prevention, and Contingency Plan, any new BMP or inspection step has to make it into that document too. Our comparison of SWPPPs and PPC Plans for PAG-03 explains what the plan is expected to contain.
Does PAG-03 Coverage Continue Automatically When DEP Reissues the Permit?
Sometimes it does and sometimes it doesn't, and the only way to know is to read the notice for that edition. In 2023, existing permittees had to file an NOI by a set date. In 2016, DEP's fact sheet describes automatic coverage on the publication date. A facility that assumes the last cycle's rule applies to the next one is guessing.
Facilities on the other routes should check their own paperwork. An individual NPDES permit runs on its own five-year cycle, so a PAG-03 reissuance doesn't change its expiration date, though the renewal application still has to go in at least 180 days ahead. The guidance we saw from the 2023 cycle varied on No Exposure Certification holders, with some firms saying an NOI was required and others saying the existing certification stayed valid until the date on DEP's approval letter. If you hold a certification, read the notice for the edition in front of you along with your own approval letter, and ask DEP when the two don't line up.
A facility that misses the step a notice calls for can end up discharging without current authorization, which is a harder problem to fix than a late form. The deadline goes on the calendar the day the notice appears.
How Do You Stay Ahead of the Next PAG-03 Reissuance?
Start now, while there's about a year and a half left on the current edition. Pull your DEP approval letter and confirm which industry appendix you're under and when your coverage was approved. Then read your PPC Plan against how the site runs today. Plans that drifted from reality are the ones that take the most work when a new edition arrives, and our guide to the best ways to get and stay in NPDES stormwater permit compliance covers the habits that keep a plan current between reissuances.
Next, decide who's watching for the notice. DEP publishes notice of PAG-03 reissuance in the Pennsylvania Bulletin, and its industrial stormwater page carries updates as well, so waiting for a personal letter can mean missing the date. Give one person the job of checking those sources on a regular schedule, and give that person a backup. When a draft appears, the fact sheet that comes with it is the quickest way to see what's changing. Read it with your sampling plan, your list of BMPs, and your eDMR setup open next to it, and mark everything that would need to change. The comment period also gives you a chance to tell DEP how a proposed change would work on a real site.
| Stage |
What to do |
| Now |
Confirm your coverage dates and appendix, check the PPC Plan against site conditions, and name someone to watch for DEP's notice |
| When the draft is published |
Read the fact sheet, list every change that touches your site, and decide whether to submit comments |
| When the final permit is published |
Find out whether an NOI is required and by when, and line up any extra sampling and lab work right away |
| Before the effective date |
Update the PPC Plan and procedures, tell your lab and your eDMR submitter about new parameters, and train staff |
Once the final permit is out, the lab work is what usually runs short on time, since a sampling event depends on the weather. Our guide to PAG-03 stormwater samples in Pennsylvania and our walkthrough of Pennsylvania's eDMR reporting are useful refreshers for the people who'll carry out the changes. Training closes the loop, because the people collecting samples and doing inspections have to know about any new step before it becomes a requirement. Our online environmental training library is one way to keep your team current, and it also helps to know how DEP checks your work, which we cover in what happens during a PA DEP stormwater inspection.
How Can RMA Help With a PAG-03 Reissuance?
We're based in New Jersey and work with facilities across Pennsylvania on PAG-03 coverage, PPC Plans, sampling guidance, eDMR reporting, and renewals. When DEP reissues the permit, we can read the new edition against your plan, tell you what changes for your site, update the PPC Plan, and help prepare the NOI if one is required. You can see how we approach Pennsylvania work on our Pennsylvania NPDES and stormwater services page.
Plenty of facilities can handle a reissuance on their own with a current plan and a good calendar, and DEP's forms and fact sheets are free. If that sounds like you, our article on doing PAG-03 yourself versus hiring a consultant can help you decide how much help you want. If you'd rather have someone who's been through it look things over, you can call, email, or fill out the form on our website and tell us what you have. There's no obligation and no pressure, and if we're not the right fit we'll say so. Just contact RMA whenever the timing makes sense for you.
