Work closely with Legal, Marketing, Business Development, Accounting, Contracts, Rates, and other groups to develop regulatory filings related to service agreements, fuel and cost trackers, rate case proceedings, new services, enhancements to existing services, and other potential tariff modifications. The Tariffs Analyst will work collaboratively across TC Energy's USNG business, partnering with Marketing, Business Development, Legal, Operations, Accounting, Contracts, Rates, Certificates, and other teams to develop and implement commercial and regulatory initiatives affecting individual pipelines and the broader organization.