Fifty years ago, Chemung, Schuyler, and Steuben Counties committed to regional collaboration and cooperation by establishing the 
Southern Tier Central Regional Planning and Development Board (STC).

 STC works with local government, economic and community development organizations, and human services agencies to identify issues and provide solutions that will improve the economy, the environment, and the quality of life in the STC region.  

As the local development agency for both the Appalachian Regional Commission and the Economic Development Administration, and through its work with other funding sources, Southern Tier Central Regional Planning and Development Board brings millions of dollars to the region and provides assistance as well as funding. STC collaborates with the region's resources on the local, state, and federal levels to find solutions for today’s and the future's issues and needs.


Due to Covid-19 and Governor Cuomo’s executive order, STC’s office remains closed. All staff continues to work from home and can be reached at their below email address.

If there is an immediate concern, please contact Chelsea Robertson, Executive Director at 607-768-3917.

Thank you for your patience and we all look forward to getting back to work in the office!

Staff Email Addresses

Courtney Cornell (GIS Analyst) –
Maggie Costello (Planner) –
Victoria Ehlen (Economic Development Coordinator) –
Brittany McKerlie (Accountant) –
Chelsea Robertson (Executive Director) –
Yvonne Terwilliger (Executive Assistant) –
Janet Thigpen (Flood Mitigation Specialist) –
Tim Tostanoski (Technology Coordinator) –
Stephanie Yezzi (Planner) –  


See what STC accomplishes. CLICK HERE  for our most recent annual report.






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STC Regional Planning & Development Board  8 Denison Parkway East Ste 310 Corning, NY 14830
Phone 607.962.5092
Fax 607.962.3400
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