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https://urldefense.proofpoint.com/v2/url?u=https-3A__www.federalregister.gov_documents_2017_10_24_2017-2D22989_national-2Dspace-2Dbased-2Dpositioning-2Dnavigation-2Dand-2Dtiming-2Dadvisory-2Dboard-2Dmeeting&d=DwMFaQ&c=0NKfg44GVknAU-XkWXjNxQ&r=MJtIIwrgPX12DH4er3u7r7eAvKB_A944wnFm0j5xJTY&m=3UK0yRYdvAlnd7zKOscAl_TtBHwljVIjRTKXVZk8cAY&s=Ivo1rU-3NXhD6MWSH4NjM9hQpkSJEeXp01NPPNSq9AQ&e=