Network Open Season Network Open Season (NOS) is a BPA initiative to manage and respond to long-term firm transmission requests on the BPA network. Below are links to past and present information on the NOS initiatives: Network Open Season and Generator Interconnection Reform Network Open Season 2010 Network Open Season 2009 Network Open Season 2008 Common Documents Following are documents supporting the Network Open Season process Fact Sheet Commercial Infrastructure Financial Analysis (CIFA) 2008 NOS Project Summary Requesting a Cluster Study Report Email Sign-Up Sign up for email notifications. Information Requests To request previously posted materials, send an email to techforum@bpa.gov with your name, company, and email address. Related Links View links to related documents. Business Practices Open Access Transmission Tariff Transmission Project Page ATC Methodology