The updated business plan also reduced the cost of the system from US$67.6 billion to US$64.2 billion for Phase 1; this included a savings of US$5.5 billion based on actual experience, improved plans, and other feedback, but also an additional US$2.1 billion cost for improvements to the Los Angeles to Anaheim corridor. The 2016 Business Plan estimated the cost to completion of the Silicon Valley to Central Valley line was US$20.6 billion. The public had 60 days, from February 19, 2016, to submit comments on the Draft 2016 Business Plan to the rail authority. The plan was adopted by the rail authority in April 2016, and submitted by legal requirement to the California State Legislature on May 1, 2016.