Where to Find State Air Quality Modeling Guidelines on Providence-Oris

Updated

Providence-Oris (providenceoris.com) publishes a one-stop page for air quality modeling guidelines covering the entire United States. You reach it through the State Guidelines link in the site's main navigation — the same menu that holds Products, Services, Training, Support, and Resources. Use it when you need to confirm which dispersion model, meteorological data, or submission format a particular state expects before running a compliance study.

What the State Guidelines page is for

Air quality modeling requirements are set partly by the U.S. EPA and partly by state or local agencies. The Providence-Oris guidelines page aggregates those state-level rules in one place so you don't have to hunt through dozens of agency websites. Typical reasons to open it:

  • Checking whether a state requires AERMOD versus another model for a permit application.
  • Confirming state-specific meteorological data or surface file conventions.
  • Finding the correct agency contact or submission pathway for a modeling report.

The site describes this as a "one-stop spot for modeling guidelines that cover the entire United States."

How to get there

  1. Go to providenceoris.com.
  2. In the main navigation, select State Guidelines (it appears as a highlighted section on the home page as well).
  3. Browse or search the list for your state.
  4. Follow the linked guidance to the relevant agency or document.

The site does not state whether the guidelines page requires a login. The navigation shows a Login and Checkout option, which indicates some areas (software purchases, downloads, support) are account-based, but the guidelines content is presented as a public resource.

Related resources on the same site

If the state guidelines page doesn't answer your question, Providence-Oris groups several other references under Resources:

Resource What it covers
EPA SCRAM EPA's official dispersion modeling clearinghouse
Blog Company posts on modeling topics and news
Modeling Tips Practical notes on running modeling studies
Other Links Additional external references

The site also offers Free Software Trials and software webinars, which are useful if your state guideline points you toward a tool you haven't used before.

When to use the guidelines versus asking Providence-Oris directly

  • Use the State Guidelines page when you need a quick regulatory reference — model selection, data requirements, or submission rules for a specific state.
  • Use Consulting when the guideline is ambiguous, your project spans multiple states, or you need someone to run or review the modeling. The site describes this as speaking "one on one with our experts."
  • Use Training if you need to build in-house capability. Courses listed include AERMOD Modeling, Advanced AERMOD, and Air Permitting, with on-site training available on request. Group discounts are advertised: registering more than one person for AERMOD courses using code "100TRAINING" saves $100 per additional registrant.

Practical notes

  • The guidelines page is a directory, not a substitute for the state agency's own rule text — always verify against the agency source before submitting.
  • Pricing shown on the site applies to software products (for example, Surface Files Converter and IGRA Files Extractor at $40.00 each as one-time purchases, and AERMOD Wizard in a $345.00–$690.00 range). The guidelines page itself is not listed as a paid product.
  • If a state's guidance references meteorological data preparation, Providence-Oris sells or supports tools for that step (IGRA Files Extractor, Surface Files Converter) and offers Meteorological Data as a service.