1. Initially, you have to identify the CalChamber discount code you're keen on from this page and click on Get Code, located on the right side of the title.
2. You'll observe the offer code being displayed and automatically copied to your clipboard after a single click.
3. Then go back to the shopping checkout page of calchamber.com, where you can find the promo code box and paste the code into it.
4. Ultimately, by clicking 'Apply Code', you will be able to see the discount amount on your existing order.