Yes, a common misconception. The RHNA process is conducted on a rolling calendar. SANDAG had to close their housing elements in April 2021. SCAG cities had a deadline in October 2021. ABAG cities are due today. AMBAG is not due until December 2023.

Edit:

  RHNA: regional housing needs allocation
  SANDAG: San Diego Association of Governments
  SCAG: Southern California Association of Governments
  ABAG: Association of Bay Area Governments
  AMBAG: Association of Monterey Bay Area Governments