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OSM of Belleville, Ontario, Canada is open from 9:00AM to 4:30PM EST.

Tel: 613-969-0626
Toll Free: 888-402-2681
Fax: 866-586-3867

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New Mailing Address:
PO Box 1649
Belleville PO CSC

Note: As of December 1st, 2021 we are 100% remote. Please read our official announcement here.


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