The Mortgage Bankers Association wants to make sure that Fannie Mae and Freddie Mac aren’t infringing on the primary market as they take on new technology-based mortgage initiatives. The MBA noted that the “bright line” between the primary and secondary markets is crucial.For example, the trade group expressed some concern that Fannie’s Day 1 Certainty initiative is the type of program that may have unintended consequences on the primary market. Officials with the MBA told Inside The GSEs that Day 1 Certainty’s roll-out relied on a single vendor for each component, even though the technology was not new. “Several other vendors offered similar products,” the group noted.