The city of Rio Vista does inspections between 8:30 AM- 12:00 PM and 12:30 PM - 2:00 PM Tuesday and Thursdays.
You can request an inspection 24 hours in advance through email or phone.
inspections [at] ci.rio-vista.ca.us (inspections[at]ci[dot]rio-vista[dot]ca[dot]us)
707-374-6448