Sydney Regional Environmental Plan No 20—Hawkesbury-Nepean River (No 2—1997)New or updated versions of Sydney Regional Environmental Plan No 20—Hawkesbury-Nepean River (No 2—1997)New South Wales Parliamentary Counsel's Officehttp://legislation.nsw.gov.au:80http://legislation.nsw.gov.au:80/feed?desc=New%20or%20updated%20versions%20of%20Sydney%20Regional%20Environmental%20Plan%20No%2020%E2%80%94Hawkesbury-Nepean%20River%20(No%202%E2%80%941997)&id=title&name=Sydney%20Regional%20Environmental%20Plan%20No%2020%E2%80%94Hawkesbury-Nepean%20River%20(No%202%E2%80%941997)&query=(Type%3D%22epi%22)%20AND%20(No%3D592)%20AND%20(Year%3D1997)http://legislation.nsw.gov.au:80/images/nsw_coa_color.gif1800-01-01T00:00:00+10:00