Regulatory Support Services

Exponent’s air quality and meteorology staff offers extensive experience in a wide range of regulatory support and assessment service areas. This experience can help clients respond to numerous regulatory issues.

Exponent’s regulatory support services include the following:

  • Preparation of new source review and operating air quality permits, including Prevention of Significant Deterioration and major non-attainment new source review
  • Critical third-party review of air permitting and licensing actions
  • Federal Energy Regulatory Commission (FERC) licensing support for liquefied natural gas (LNG) terminal and gas pipeline projects, including general conformity analyses
  • Environmental impact report preparation and State Implementation Plan development support
  • Expert testimony on issues concerning permitting, emissions, and project impacts and associated experience with depositions and hearings
  • Identification of applicable international, federal, state, and local regulatory requirements and assessment of compliance
  • Prospective tracking of developing regulatory initiatives and reviews of prior regulatory requirements for the retrospective assessment of prior actions
  • Calculation of criteria pollutant, hazardous air pollutant, and greenhouse gas emissions from stationary and mobile air emission sources to support permitting and compliance assessment activities
  • Calculation of emissions reductions associated with the displacement of conventional electrical generation by other generation sources such as wind power, hydropower, nuclear power, and combustion of alternative fuels
  • Emissions cap and trading program support, including issues associated with emissions allowances
  • Assistance with issues related to the generation or acquisition of mass-based and time-based emission reduction credits for emission offset, compliance, or banking purposes
  • Due diligence reviews associated with potential asset transfers
  • Assistance with volatile organic compound (VOC) exemption proposals and with review of product formulations for compliance with VOC content limits
  • Assistance with product registration requirements
  • Interstate transport issues and Section 126 petitions
  • Assistance with National Emissions Standards for Hazardous Air Pollutants (NESHAP)/Maximum Achievable Control Technology (MACT) de-listing issues and associated analyses
  • Determination of emissions control requirements for stationary and mobile sources
  • Assistance with a variety of other miscellaneous issues, including requirements associated with open burning, aerosol propellants, and flares.
Example Projects

Exponent has provided ongoing regulatory tracking services for a chemical used as an active ingredient in fumigant products and has also provided assistance with the associated registration process for the product. The tracking has included surveys of the status of the chemical under various regulations and in different jurisdictions. The tracking has also included review of items in the scientific literature and in the press.

Exponent has provided several expert third-party reviews on draft air permits and siting certifications for proposed power plant projects. Reviews included consideration of completeness, technical adequacy, and consistency with applicable requirements. Assistance included expert testimony at public hearings and administrative proceedings.
Exponent provided regulatory and modeling support to an existing coal-fired electric generating facility following the filing of a Section 126 petition by a third party alleging that the facility was contributing to a predicted violation of a National Ambient Air Quality Standard in a neighboring state. Exponent’s regulatory and technical assistance helped to develop responses that resolved the issue.

Exponent provided regulatory and technical assistance to a manufacturing trade group seeking to delist an industrial sector from a proposed NESHAP/MACT standard. Exponent assisted with the review of regulatory precedents and with a variety of modeling and technical tasks to support the effort.

Exponent reviewed emission control and monitoring requirements for municipal waste incinerators in various countries as part of a review of a draft operating permit update. Other services on the project included reviewing stack test data, ambient monitoring data, and dispersion modeling.



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