Last week, the US Senate and House of Representatives each began consideration of bills proposed by their respective members that would reauthorize spending limits for the federal government’s surface transportation programs: Senate Bill S.1813, entitled Moving Ahead for Progress in the 21st Century (“MAP‑21”) and House Bill H.R.7, called The American Energy & Infrastructure Jobs Act (the “AEIJA”). We summarize in the attached the principal similarities and differences between the two proposals, focusing on federal highway programs.