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Additional Trade KIT
C-47 Manufactured Homes
Contractors License and Performance Bonds

C47 – Manufactured Housing Contractor

(a) A general manufactured housing contractor installs, alters, repairs or prepares for moving any type of manufactured housing as that term is defined in Section 18007 of the Health and Safety Code, including the accessory buildings or structures, and the foundations. A manufactured house does not include any recreational vehicle, commercial coach or factory built housing as that term is defined in Section 19971 of the Health and Safety Code.

(b) A general manufactured housing contractor may provide utility services on a single family individual site placement. Utility services mean the connection of gas, water, sewer and electrical utilities to the home.

Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)

Content of the Examination

The General Manufactured Housing Contractor (C-47) Examination is divided into eight major sections. These sections are:

1. Below Ground Site Preparation (7%)

  • Assess site and site conditions
  • Make required site modifications

2. Above Ground Site Preparation (10%)

  • Evaluate home placement conditions and requirements
  • Plan and install foundation

3. Home Installation (29%)

  • Complete planning, permitting, and inspection procedures
  • Begin rough set
  • Complete rough set

4. Finish Work on Installed Home (6%)

  • Prepare for and make desired alterations

5. Auxiliary and Miscellaneous Installations (9%)

  • Plan and prepare to install accessories
  • Assemble and install accessories

6. Below House Repair, Remodeling, Renovation, Retrofitting (11%)

  • Repair damage caused by settling or shifting of home or site
  • Repair damage caused by wear, water, and utility delivery interruption

7. Structural Repair, Remodeling, Renovation, Retrofitting (15%)

  • Repair utility systems and appliances
  • Repair home and peripheral structures

8. Safety (13%)

  • Plan for safe delivery of home to the site
  • Use safety precautions during installation of home

*Percentages are approximate*

Test Site Policy
   This is a closed-book examination. No reference materials may be used during the examination. All materials brought to the examination site must be left in an unmonitored area at your own risk.

Test Strategy
   This is a multiple choice examination with four choices per question. Some questions require mathematical computation. Examination questions are written to provide only one BEST answer and are NOT written as trick questions.
   All correct answers have equal value and there are no score reductions for wrong answers. Therefore, all examination questions should be answered.
   Ample time is provided to answer all examination questions, so be sure to read each question and its four choices completely and carefully before selecting the BEST possible answer to the question.

Sample Questions

The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.

1. In a mobilehome park, what is the MINIMUM distance allowed between any accessory building and a property line that does not border on a driveway?

  1. 2 feet
  2. 3 feet
  3. 5 feet
  4. 10 feet

2. Which of the following agencies must be contacted prior to making structural changes to a manufactured home?

  1. City building department
  2. County building department
  3. Office of Safety and Health Administration
  4. Department of Housing and Community Development

3. In a cabana, what is the MINIMUM aggregate window area required if a habitable room is 90 square feet?

  1. 5 square feet
  2. 9 square feet
  3. 10 square feet
  4. 18 square feet

*All questions are written and reviewed by licensed contractors who are actively working in the field*

Cal/OSHA Construction Safety Orders.
California Code of Regulations, Title 8,
Industrial Relations, Chapter 4, Subchapter 4,
Barclays Law Publishers,
P.O. Box 95767, Chicago, IL 60694.
(800) 888-3600
FAX (415) 732-8875
OR Building News, Inc.
1612 S. Clementine Street, Anaheim, CA 92802.
(888) 264-2665

Manufactured Homes – A Handbook for Local Government.
Department of Housing and Community Development,
8911 Folsom Blvd., Sacramento, CA 95826.
(916) 255-2501

Manufactured Home Installation Training Manual.
U.S. Department of Housing and Urban Development, HUD USER,
P.O. Box 6091, Rockville, MD 20849.
(800) 245-2691
FAX: (301) 519-5767.

Mobilehome Installation Guide.
Department of Housing and Community Development,
8911 Folsom Blvd., Sacramento, CA 95826.
(916) 255-2501

California Code of Regulations, Title 25, Housing and Community Development.
Office of Administrative Hearings,
Department of General Services.
Barclays Law Publishers,
P. O. Box 3066, South San Francisco, CA 94083.
(415) 732-8800
FAX: (415) 732-8861.
Highlight and click on California Code of Regulations on the left of the screen and scroll down to TITLE 25 Housing and Community Development.

California Building Code.
International Conference of Building Officials,
5360 S. Workman Mill Road, Whittier, CA 90601.
(800) 284-4406 or (562) 699-0541
FAX: (888) 329-4226.

*Publisher information is current as of 6/02*

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