CA BRANCH 3 STUDY 2026/2027 GUIDE QUESTIONS AND
ANSWERS GRADED A+
✔✔Wood Decay Fungi - ✔✔diverse group of organisms that are different than plants
and animals that live in the soil, water, and air
✔✔Wood Decay Fungi feed on - ✔✔the structural components of wood and require
moisture to be able to infest and digest lumber. Fungi produces spores.
✔✔Wood Decay Fungus does what - ✔✔fungus rots the wood, NOT the water
✔✔Brown Rot fungi does what - ✔✔digest the hemicellulose and cellulose which
causes the wood to shrink and turn BROWN
✔✔White Rot fungi does what - ✔✔digest the lignin and cellulose and leaves the wood
WHITE
✔✔inspection tag - ✔✔3x5
posted in attic, garage or subarea for ALL wdo inspections
✔✔completion tag - ✔✔posted next to inspection tag when work is completed
✔✔WDO inspections - ✔✔may only be made by BRANCH 3 field rep or operator
✔✔REQUIRED to recommend correction.... - ✔✔when the soil is even or higher than
top of the foundation
✔✔PROPER ACCEPTABLE CLEARANCE - ✔✔12 inches from soil to joist
✔✔cellulose debris - ✔✔MUST be recommended to be removed if larger than rakeable
size
✔✔sub-floor ventilation - ✔✔primary reason (main purpose) is for removal of moisture
from sub area
✔✔recommendation to fumigate - ✔✔should ALWAYS be made when DRYWOODS are
found leading to inaccessible areas or are widespread
✔✔whenever pellets or frass is found - ✔✔always recommend TREATMENT AND
REMOVAL, MASKING or COVERING of pellets
✔✔standard shower test - ✔✔cover the flow of water to a 2 inch depth for 15 minutes
, ✔✔INSPECTION or COMPLETION - ✔✔MUST be filed with the board WITHIN 10
DAYS!!
✔✔FILING FEE - ✔✔$1.50 per address
✔✔failure to file - ✔✔could result in disciplinary action AND fine up to $2500
✔✔all REPORTS and WORKSHEETS - ✔✔MUST be kept for 3 years
✔✔if SPCB requests report - ✔✔you have 2 days to submit!
✔✔after 4 months from original inspections - ✔✔ALL re-inspections shall be ORIGINAL
✔✔RE-INSPECTION CHARGE - ✔✔cannot be more than the original inspection
✔✔notice of work completed and not completed - ✔✔shall be given to owner or owner's
agent within 10 WORKING DAYS after completing work under the contract. (form is
prescribed by board)
✔✔A written inspection and report of wood destroying pests and organisms shall be
delivered in how many days from the date of inspection - ✔✔10 Business Days
✔✔The address of each property inspected or upon which work is completed shall be
reported and filed with The Board how many days after the commencement of
inspection - ✔✔10 Business Days
✔✔A registered company shall not subcontract structural fumigation work without what?
- ✔✔Written consent from the consumer
✔✔It is unlawful for a registered company to solicit payment from the consumer for any
structural fumigation work not actually rendered unless prior to the authorization the
consumer is provided what notice? - ✔✔Notice: the charge for service that this
company subcontracts to another registered company may include the company's
charges for arranging and administering such service that are in addition to the direct
costs associated with paying the subcontractor. You may accept (company's name) bid
or you may contract directly with another registered company licensed to perform the
work.
✔✔In order for a registered company or licensee to commence work on a contract, or
sign, issue, or deliver any documents expressing an opinion or statement relating to the
absence or presence of wood destroying pests or organisms, what must first take
place? - ✔✔An inspection has to have been made by a licensed Branch 3 Field
Representative or Operator.
ANSWERS GRADED A+
✔✔Wood Decay Fungi - ✔✔diverse group of organisms that are different than plants
and animals that live in the soil, water, and air
✔✔Wood Decay Fungi feed on - ✔✔the structural components of wood and require
moisture to be able to infest and digest lumber. Fungi produces spores.
✔✔Wood Decay Fungus does what - ✔✔fungus rots the wood, NOT the water
✔✔Brown Rot fungi does what - ✔✔digest the hemicellulose and cellulose which
causes the wood to shrink and turn BROWN
✔✔White Rot fungi does what - ✔✔digest the lignin and cellulose and leaves the wood
WHITE
✔✔inspection tag - ✔✔3x5
posted in attic, garage or subarea for ALL wdo inspections
✔✔completion tag - ✔✔posted next to inspection tag when work is completed
✔✔WDO inspections - ✔✔may only be made by BRANCH 3 field rep or operator
✔✔REQUIRED to recommend correction.... - ✔✔when the soil is even or higher than
top of the foundation
✔✔PROPER ACCEPTABLE CLEARANCE - ✔✔12 inches from soil to joist
✔✔cellulose debris - ✔✔MUST be recommended to be removed if larger than rakeable
size
✔✔sub-floor ventilation - ✔✔primary reason (main purpose) is for removal of moisture
from sub area
✔✔recommendation to fumigate - ✔✔should ALWAYS be made when DRYWOODS are
found leading to inaccessible areas or are widespread
✔✔whenever pellets or frass is found - ✔✔always recommend TREATMENT AND
REMOVAL, MASKING or COVERING of pellets
✔✔standard shower test - ✔✔cover the flow of water to a 2 inch depth for 15 minutes
, ✔✔INSPECTION or COMPLETION - ✔✔MUST be filed with the board WITHIN 10
DAYS!!
✔✔FILING FEE - ✔✔$1.50 per address
✔✔failure to file - ✔✔could result in disciplinary action AND fine up to $2500
✔✔all REPORTS and WORKSHEETS - ✔✔MUST be kept for 3 years
✔✔if SPCB requests report - ✔✔you have 2 days to submit!
✔✔after 4 months from original inspections - ✔✔ALL re-inspections shall be ORIGINAL
✔✔RE-INSPECTION CHARGE - ✔✔cannot be more than the original inspection
✔✔notice of work completed and not completed - ✔✔shall be given to owner or owner's
agent within 10 WORKING DAYS after completing work under the contract. (form is
prescribed by board)
✔✔A written inspection and report of wood destroying pests and organisms shall be
delivered in how many days from the date of inspection - ✔✔10 Business Days
✔✔The address of each property inspected or upon which work is completed shall be
reported and filed with The Board how many days after the commencement of
inspection - ✔✔10 Business Days
✔✔A registered company shall not subcontract structural fumigation work without what?
- ✔✔Written consent from the consumer
✔✔It is unlawful for a registered company to solicit payment from the consumer for any
structural fumigation work not actually rendered unless prior to the authorization the
consumer is provided what notice? - ✔✔Notice: the charge for service that this
company subcontracts to another registered company may include the company's
charges for arranging and administering such service that are in addition to the direct
costs associated with paying the subcontractor. You may accept (company's name) bid
or you may contract directly with another registered company licensed to perform the
work.
✔✔In order for a registered company or licensee to commence work on a contract, or
sign, issue, or deliver any documents expressing an opinion or statement relating to the
absence or presence of wood destroying pests or organisms, what must first take
place? - ✔✔An inspection has to have been made by a licensed Branch 3 Field
Representative or Operator.
