Aaron J. Wallisch

Wallisch Aaron

Aaron Wallisch is a regulatory attorney who assists clients with meeting U.S. federal, state, and local regulatory compliance requirements. Aaron regularly engages in matters involving solid and hazardous waste, hazardous materials transportation, pesticide use and registration, homeland security, oil spill prevention, stormwater control, storage tanks, and air pollution emission control. He regularly represents trade groups and individual companies in advocacy at the legislative or federal agency level in the development of new laws and regulations. He also represents companies responding to federal criminal investigations, and conducts internal company audits pertaining to environmental and transportation regulatory compliance. 

Aaron has advised a national trade group of electric and gas utilities, a leading international shipping company, a major petroleum refinery, a large electric utility, an international consumer retail company, and a building products manufacturer.


Representative Matters

  • Represents the Utility Solid Waste Activities Group (USWAG), a trade group of more than 110 electric and gas utilities and associations that, together, represent more than 73 percent of the total electricity generating capacity in the United States, and service more than 95 percent of the nation's consumers of electricity
  • Counsels and advocates for clients in various regulatory matters arising under the Resource Conservation and Recovery Act (RCRA), the Toxic Substance Control Act (TSCA), the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), the Hazardous Materials Transportation Act (HMTA), the Oil Pollution Act (OPA), and the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA)
  • Regularly engages with the Environmental Protection Agency, congressional committees, and other trade groups to provide regulatory and legislative advocacy and compliance assistance for USWAG and its individual company members
  • Represented one of the largest international shipping companies in a matter involving HMTA preemption of state routing laws, and assisted a major retailer in responding to investigations of HMTA noncompliance
  • Persuaded the EPA to provide tailored rules for electric utility facilities in the recent amendments to the Spill Prevention, Control and Countermeasures (SPCC) rules, and advocated for the re-registration of key wood treatment chemicals under FIFRA
  • Conducted a detailed internal audit of a large electric utility related to RCRA and HMTA compliance that resulted in changes to corporate operational practices
  • Assisted a major retailer in responding to investigations of HMTA noncompliance




  • J.D. Harvard Law School 2002
  • B.A. magna cum laude Bucknell University 1999
  • Phi Beta Kappa

Bar Admissions

  • District of Columbia
  • Maryland

Professional Memberships and Activities

  • Member, American Bar Association, Section of Environment, Energy, and Resources
  • Member, Maryland State Bar Association 
  • Member, District of Columbia Bar Association 


Pro Bono

  • Represents landlords and tenants before the DC Superior Court
  • Assists elderly individuals in preparing wills and powers of attorney