{"code":"SHC","codeName":"Streets and Highways Code","section":"421","citation":"Sts. & Hy. Code, § 421","status":"in-force","lawOn":"2026-09-28","headings":[{"name":"DIVISION 1. STATE HIGHWAYS [50. - 897.]","url":"https://blackletter.si/streets-and-highways-code/division-1"},{"name":"CHAPTER 2. The State Highway System [230. - 635.]","url":"https://blackletter.si/streets-and-highways-code/division-1/chapter-2"},{"name":"ARTICLE 3. The State Highway Routes [300. - 635.]","url":"https://blackletter.si/streets-and-highways-code/division-1/chapter-2/article-3"}],"history":"Amended by Stats. 1984, Ch. 409, Sec. 47.","effective":null,"html":"<p>Route 121 is from:</p><p>(a) Route 37 near Sears Point to Route 29 near Napa.</p><p>(b) Route 29 in Napa to Route 128.</p>","text":"Route 121 is from: (a) Route 37 near Sears Point to Route 29 near Napa. (b) Route 29 in Napa to Route 128.","otherVersions":[],"url":"https://blackletter.si/streets-and-highways-code/the-state-highway-routes-421","source":"California Legislative Information bulk export (pubinfo)"}