Operations Special Interest Group
The Operations Special Interest Group
Focused on Realistic Prototype Operation
Join Us!About OPSIGDispatcher's Office
Our Quarterly Journal
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Welcome to the web presence of the Operations Special Interest Group (OPSIG)! We're constantly evolving to serve our members better, so please pass comments to webmaster@OPSIG.org.

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Our mission, structure and contact information.
Dispatcher's Office
The quarterly journal of the OPSIG.
OPS 101, FAQs, pointers to Internet information, and more.
Coming Events
Operation-oriented events open to all model railroaders, including events at the NMRA National convention.
Members Only
Password required (check the mailing label of your latest DO journal)! Information for members of the OPSIG, including the Call Board - a list of layouts welcoming operators!
OPSIG Clothing
Show off your organization with stylish and handy OPSIG clothing.

Most recent update: 2014 July 25
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