Do I need a notary for the Smoke Alarm Installation Affidavit?

No. The property owner or licensed contractor signs and dates the affidavit; the form does not mention a notarized attachment or sworn step.

How do I submit Form 303?

Complete and sign the affidavit before requesting City inspector sign-off, then place it in the permit jacket or with the permit record card.

Who can sign the affidavit?

The form provides signer options for a licensed contractor or property owner. The signer verifies the alarms for the permit identified on the form.

What information does Form 303 ask for?

It asks for the permit number, property type, project address, property owner’s name, contractor’s name if any, signer type, signature, printed name, and date.

San Jose, CA · Santa Clara County

No notary required

Affidavit of Smoke Alarm and Carbon Monoxide Alarm Installation (Form 303)

Property owners or licensed contractors use this affidavit to verify smoke and carbon monoxide alarms for qualifying residential building permit projects in San Jose.

What this form is

Form 303 lets a property owner or licensed contractor certify that smoke and carbon monoxide alarms are installed, tested, and functioning for a residential building permit project that does not require an interior inspection. The form says this verification is required for alterations on residential property when a building permit is obtained. It asks for the permit number, project address, property type, owner and contractor names, and the signer’s signature and date.

Who needs it

A property owner or licensed contractor completes this affidavit for a permitted residential alteration that does not require an interior inspection.

How to submit it

Complete and sign the affidavit before requesting a City inspector to sign off on the project. Place it in the permit jacket or with the permit record card.

About notarization

No notary is required; the property owner or licensed contractor signs and dates the affidavit, and the document mentions no notarized attachment or sworn step.

How to submit this form

1
Download Form 303
Download the affidavit PDF for the residential building permit project.
2
Complete the Form
Enter the permit number, property type, project address, and owner and contractor names as applicable.
3
Verify and Sign
Confirm the alarms are installed and functioning, then sign and date the affidavit as the property owner or licensed contractor.
4
Place With Permit Records
Before requesting City inspector sign-off, place the completed affidavit in the permit jacket or with the permit record card.

Frequently asked questions

Do I need a notary for the Smoke Alarm Installation Affidavit?: No. The property owner or licensed contractor signs and dates the affidavit; the form does not mention a notarized attachment or sworn step.
How do I submit Form 303?: Complete and sign the affidavit before requesting City inspector sign-off, then place it in the permit jacket or with the permit record card.
Who can sign the affidavit?: The form provides signer options for a licensed contractor or property owner. The signer verifies the alarms for the permit identified on the form.
What information does Form 303 ask for?: It asks for the permit number, property type, project address, property owner’s name, contractor’s name if any, signer type, signature, printed name, and date.

Need something notarized?

This Affidavit of Smoke Alarm and Carbon Monoxide Alarm Installation (Form 303) doesn’t need a notary — but if you have another San Jose form that does, a commissioned online notary can help.