Financial assurance for cleanup operations

Financial assurance (sometimes called financial responsibility) is required under certain Washington environmental regulations for:

  • All permitted dangerous waste facilities to prove they have the finances to cover closure, maintenance, and costs of environmental cleanup, if needed (WAC 173-303-620). 
  • Model Toxics Control Act (MTCA) cleanup sites to cover operations and maintenance 
    (WAC 173-340-440).
  • Used oil processors to prove they have funds to cover closure (WAC 173-303-515).

Facilities must:

Hazardous waste service providers may offer financial assurance, but it is not required.

Why is financial assurance needed?

Financial assurance provides security to dangerous waste generators by covering any unforeseeable issues that could arise from the handling or disposal of their waste by a hazardous waste service provider or permitted dangerous waste facilityWhile generators must dispose of dangerous waste at a permitted dangerous waste facility, they remain liable even when it’s in the care of a hazardous waste service provider and after disposal.

What types of financial assurance are required?

Active permitted dangerous waste facilities must provide two types of financial assurance:

  • Closure cleanup.
  • Third-party liability.

Other types of financial assurance may be required.


How do facilities show proof of financial assurance?

There are several ways (referred to as mechanisms or instruments) that facilities can use to show proof of financial assurance. All mechanisms are equal under the law.


Annual inflation factors

Cost estimates for financial assurance need to be adjusted every year for inflation. Some companies choose to do an entirely new cost estimate every year to make sure it’s always accurate. However, that’s not required. Instead, simply multiply the amount from last year by this year’s inflation adjustment. This also works to adjust an old amount for multiple years.

Inflation factors by year

Year Inflation factor
2016 1.0100
2017 1.0131
2018 1.0180
2019 1.0226
2020 1.0175
2021 1.0121
2022 1.0414
2023 1.0698
2024 1.0364
2025 1.0241

How to calculate cost estimates using inflation rates

Multiply your closure-cost estimate by the inflation factors for the years affecting your project using the table above. Estimates on financial assurance documents must cover at least the final total for those years.

For example, if a closure-cost estimate was $25,000 in 2009, multiply that by 1.0219 (the inflation factor for 2009) to get $25,548. For 2010, you would then multiply $25,548 by 1.0092 (the inflation factor for 2010) to get $25,783.

To calculate inflation for other years, please contact us.