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California contractor license
Haz Mat Trans Inc
Haz Mat Trans Inc of Rancho Cucamonga holds California license 823171 (A General Engineering, HAZ Hazardous Substance Removal Certification). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Aug 31, 2027.
Licensed 23 years, longer than 83% of 271 active Rancho Cucamonga general contractors.
Active
Haz Mat Trans Inc, Rancho Cucamonga
- License
- 823171
- Class
- A General Engineering; HAZ Hazardous Substance Removal Certification
- Expires
- Aug 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Apr 1, 2027
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredImperium Insurance Company, from Apr 1, 2026, to Apr 1, 2027
Who is on this license?
- Officer
- Juan G. RiveraSince Nov 16, 2021
- Responsible managing officer
- Fred G. KniferSince Nov 27, 2019
- CEO and president
- Diana S. KniferSince Dec 24, 2019
What work does this license cover?
Issued Aug 28, 2003.
- A General Engineering
- HAZ Hazardous Substance Removal Certification
Which other Rancho Cucamonga businesses hold A General Engineering?
- Coach ConstructionLicensed since 2000
- Jones/Covey Group IncorporatedLicensed since 2002
- North Trademark Builders IncLicensed since 2004
- R S & M Construction IncLicensed since 2004
- New Legacy Development CorpLicensed since 2005
General Contractors in Rancho CucamongaCalifornia general contractors
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Nov 1, 2026)
- Contractors State License Board (CSLB)