Parking at the Pasadena Convention Center
The convention center’s subterranean parking structure has plenty of available space. There are two entrances, (a) on Marengo Avenue, and (b) Euclid Avenue, both between Green Street and Cordova Street.
$12 a day for up to 16 hours; $18 a day for in-and-out privileges (subject to change).
Alternate parking options are available on Parkopedia.
Parking at the Westin Pasadena or Sheraton Pasadena
If you are staying at the conference hotel, parking will be available at the hotel's published rates. Shuttle service will be available from the hotel to the venue at the start and end of day.
However, the venue is only a few blocks from the Westin.