REG 4008 GVW/CGW Weight Declaration: Fill Online Free
REG 4008 records the declared operating weight of a California commercial vehicle. GVW covers a vehicle and its load; CGW covers a vehicle combination and its load. Prepare owner details and up to two vehicle declarations in the official PDF.

What is this form?
REG 4008 records the declared operating weight of a California commercial vehicle. GVW covers a vehicle and its load; CGW covers a vehicle combination and its load. Prepare owner details and up to two vehicle declarations in the official PDF.
Who should use it?
Registered owners or lessees declaring the operating weight of commercial vehicles can use this form. The printed instructions cover vehicles operating at 10,001 pounds or more and describe an exclusion for certain unmodified pickups. Confirm the actual vehicle facts before selecting a weight category.
When to use a different process
This is not a weighmaster certificate, registration application or Motor Carrier Permit. Do not use empty vehicle weight alone as the loaded GVW/CGW, or assume that every pickup needs this declaration.
Current form status
- Current edition
- 2015-05-01
- Verified
- 2026-10-11
- Pages
- 1
How to fill REG 4008 online
- 1
Confirm the right transaction
Registered owners or lessees declaring the operating weight of commercial vehicles can use this form. The printed instructions cover vehicles operating at 10,001 pounds or more and describe an exclusion for certain unmodified pickups. Confirm the actual vehicle facts before selecting a weight category.
- 2
Prepare and fill the official PDF
Prepare owner/lessee name, physical and any different mailing address, California garaging county, plates, VINs, makes, confirmed maximum operating weights and first operation dates at those weights. Fleet number is optional.
- 3
Review, sign and submit
Provide the reviewed declaration to California DMV with the applicable commercial registration transaction. DMV requires the appropriate CVRA fees before operating at a higher declared weight. Check current DMV fees and permit requirements instead of treating the printed fee table as a live quote.
Prepare the form with Faye
Faye starts with this question: Does the vehicle carry its own load, tow another vehicle, or operate under 10,001 pounds?
Answer in English, Spanish or Chinese. Faye maps confirmed facts to the editable fields of this English original as you answer. You can skip, correct or undo changes. Review all pages; signatures and any noneditable certification areas require the appropriate person.
Field guidance
Owner and addresses
Owner and addresses: distinguish physical location, California garaging county and different mailing address. The no-California-county box requires an explicit out-of-state situation.
Vehicle rows
Vehicle rows: use one row per vehicle and match each plate, VIN and make. Two rows are available; additional vehicles need a separate reviewed form.
Weight and date
Weight and date: choose GVW or CGW from the real operation, record the confirmed code and pounds, and supply the first date at that weight. Under-10,001 boxes are text fields accepting X.
Information and documents to prepare
Prepare owner/lessee name, physical and any different mailing address, California garaging county, plates, VINs, makes, confirmed maximum operating weights and first operation dates at those weights. Fleet number is optional.
Signatures and review
The registered owner, lessee or designee reviews and signs section D. A business signature must identify the company and its authorized representative as the form explains. The date field is separate from the signature; Faye never signs.
Where to submit the completed form
Provide the reviewed declaration to California DMV with the applicable commercial registration transaction. DMV requires the appropriate CVRA fees before operating at a higher declared weight. Check current DMV fees and permit requirements instead of treating the printed fee table as a live quote.
Common mistakes to avoid
Avoid confusing GVWR with declared operating weight, filling both GVW and CGW for the same declaration without clarification, omitting the weight beside its code, or using the signing date as the first operation date.
REG 4008 questions
Does REG 4008 use empty weight or loaded weight?
It uses the declared operating weight: unladen vehicle weight plus the heaviest load, or the corresponding combined weights when towing. Confirm the correct category using the official definitions.
Who must sign this form?
The registered owner, lessee or designee reviews and signs section D. A business signature must identify the company and its authorized representative as the form explains. The date field is separate from the signature; Faye never signs.
Does Fylune submit this form for me?
Provide the reviewed declaration to California DMV with the applicable commercial registration transaction. DMV requires the appropriate CVRA fees before operating at a higher declared weight. Check current DMV fees and permit requirements instead of treating the printed fee table as a live quote.
Form edition and verification history
Official revision: 2015-05. Month-based revision dates use the first day for catalog storage.
Verified the official blank PDF, page count and field mapping.
Independent preparation tool
Fylune is an independent document editor, not the issuing agency. Preparing or downloading a PDF does not sign, certify, file or obtain approval for it. Follow the issuing agency’s current instructions for your transaction.