Reasonably Available Control Technology
Published: November 6, 2026 · Last reviewed: November 6, 2026 · Est. reading time 4 minutes
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In plain language: Reasonably available control technology (RACT) is the level of air pollution control a regulator expects an existing plant to install when its region fails federal air rules.
Technical definition: Reasonably available control technology is a Clean Air Act pollution control standard in state implementation plans. RACT applies to existing sources in nonattainment areas and requires control technologies that are reasonably available and meet a test of technological and economic feasibility.
Reasonably Available Control Technology at a Glance
| Attribute | Detail |
|---|---|
| Also known as | RACT |
| Category | Federal air emission standard |
| Lines of business | Pollution legal liability, contractors pollution liability |
| Industries most affected | Oil and gas operations, manufacturing, coating plants |
| Who bears the risk | Facility owner or operator |
| Also interacts with | BACT, LAER |
Key Takeaways
- RACT is the federal emission standard for older plants in areas that miss air standards.
- A client's RACT duties shape its pollution exposure.
- Pollution policies usually do not pay for required equipment.
- Ask clients in ozone nonattainment areas about new RACT rules.
What Is Reasonably Available Control Technology in Insurance?
Reasonably available control technology is the designation, per IRMI, for pollution control technology that is reasonably available and both technologically and economically feasible. Regulators apply it to existing air pollution sources in nonattainment areas. The federal framework starts with the national ambient air quality standards, the federal health standards behind the air quality index. EPA requires major source volatile organic compound (VOC) and oxides of nitrogen (NOx) RACT in moderate nonattainment areas under the ozone NAAQS. Serious nonattainment and severe nonattainment areas carry those duties forward. Ozone forms through chemical reactions between NOx and VOC on hot sunny days, and cutting ground-level ozone pollution brings public health benefits. Wind creates transport issues, so the Ozone Transport Commission advises EPA on regional solutions to ozone.
How Does Reasonably Available Control Technology Work?
- Designation. EPA makes a nonattainment designation for a region.
- Rulemaking. A state agency or air quality control commission adopts RACT through SIP revisions after public participation and comment and response.
- Source review. EPA control technique guidelines recommend presumptive limits, while non-CTG sources receive case-by-case review, often with a cost-effectiveness analysis.
- Compliance. Each facility adopts control measures, work practices or operational standards that meet its emission limitation.
Claim Examples Involving Reasonably Available Control Technology
Compressor station misses a RACT deadline.
An oil and gas industry site delays controls on its compressors, storage vessels and pneumatic devices. Regulators issue a consent order and fines, and a neighbor sues. Pollution policies often exclude fines and equipment costs, so only the neighbor's claim may respond.
Coating plant weighs energy consumption and fuel types for new emissions limitations.
A metal coating plant must cut VOC to improve local air quality. Its owner compares oxidizers and capture options, and the capital cost is not covered.
Reasonably Available Control Technology vs. Best Available Control Technology: What Is the Difference?
RACT and BACT are control technology requirements in one regulatory framework. EPA ties RACT to operating plants in nonattainment areas and BACT to new or modified major stationary sources in attainment areas, under prevention of significant deterioration.
| Comparison area | RACT | BACT |
|---|---|---|
| Primary use case | Plants already operating | New or modified major sources |
| Area type | Nonattainment areas | Areas meeting the NAAQS |
| Key factors | Technological feasibility and cost | Energy, environmental impacts and cost |
| Stringency | Usually less strict | Usually stricter |
What Are the Most Common Mistakes With Reasonably Available Control Technology?
- Assuming upgrade coverage. Required controls are an uninsured cost.
- Ignoring permit changes. Missing a new RACT rule at renewal creates E&O exposure.
- Confusing RACT with LAER. Lowest achievable emission rate applies to new sources, not existing plants.
Sources and References
- International Risk Management Institute (IRMI). RACT term definition.
- U.S. Environmental Protection Agency. RACT/BACT/LAER Clearinghouse (RBLC).
- U.S. Environmental Protection Agency. Required SIP Elements by Nonattainment Classification.