Mississippi home addition: additions over $10,000 are 'residential remodeling or additions' requiring an MSBOC license (FAQ #1), and an addition that pushes total cost over $50,000 is residential construction under § 73-59-1(b) — max three floors, with the board-practice 7,500-square-foot commercial crossover. Electrical, plumbing, mechanical and HVAC subs are licensed at any dollar amount under the statutory reading (§ 73-59-3(1)(d)) — CONFLICT-MS-001. Expect the $50 application fee, the 2h CE rule and the written insurance disclosure at signing.
Residential Builder license — new residential construction over $50,000, max three floors — § 73-59-1(b) verbatim: a residential builder constructs 'any building or structure which is not more than three (3) floors in height, to be used by another as a residence, when the total cost of the undertaking exceeds Fifty Thousand Dollars ($50,000.00).' § 73-59-3(1)(a) requires annual licensure. Crossover: 'Residential Builders license holders are allowed to work on commercial projects provided the job does not exceed 7500 square feet and three (3) floors in height' (MSBOC How-Do-I) — a board-practice figure with no statutory home in ch. 59 (scope note, not a conflict). S-MS-CODE-73-59-1
Residential Remodeler license — improvements to an existing residence over $10,000 — § 73-59-1(c) verbatim: 'any corporation, partnership or individual who, for a fixed price, commission, fee, wage or other compensation, undertakes or offers to undertake the construction, or superintending of the construction, of improvements to an existing residence when the total cost of the improvements exceeds Ten Thousand Dollars ($10,000.00).' MSBOC FAQ #1: 'residential remodeling or additions over $10,000, or residential roofing over $10,000, are required to have a license issued by MSBOC.' S-MS-CODE-73-59-1
Residential sub-trades — electrical, plumbing, mechanical, HVAC — licensed at ANY dollar amount (statutory reading; conflicting) — § 73-59-3(1)(d) verbatim: '[a]ny subcontractor, of any tier, performing the following work or within the following trade, on any residential construction or residential improvement project, no matter the dollar amount of the construction or improvements: (i) Electrical; (ii) Plumbing; (iii) Mechanical; and/or (iv) Heating, ventilation and/or air conditioning.' MSBOC's own How-Do-I page countermands the low end: 'If you are performing residential electrical, plumbing, or HVAC work less than $10,000, a state license is not required' (mechanical omitted even there). Both sources are official and live — CONFLICT-MS-001 preserved unresolved; this row seeds the STATUTORY reading with confidence=conflicting and sub-threshold scope answers stay NOT_DETERMINED where it matters. S-MS-CODE-73-59-3
General liability insurance — commercial $300,000/$600,000; residential proof of coverage, no dollar minimum — FAQ #4 verbatim: 'All applicants for a license or renewal must provide proof of general liability insurance coverage. MSBOC must be listed on the policy to receive notification in the event of cancellation. … Commercial applicants must provide a certificate of insurance showing minimum coverage of $300,000 per occurrence and $600,000 aggregate.' Application video: 'There is no minimum coverage amount required for residential applicants, just proof of coverage.' § 73-59-3(3) is the statutory hook for residential ('The board may require liability insurance … and it shall be reflected on the certificate of licensure'). Every ACTIVE license holder must maintain proof to stay in good standing; inactive licensees are exempt from the insurance requirement. S-MS-BOC-FAQ
Written insurance disclosure at contract signing — boldfaced type, before the signature line — Identical duty in both chapters. § 73-59-11 final paragraph / § 31-3-13 final paragraph verbatim: 'The holder of a valid certificate of responsibility shall disclose to the owner or other person with whom the holder is contracting at the signing of a contract or the initial agreement to perform work whether the holder carries general liability insurance. The disclosure shall be written … and shall be placed immediately before the space reserved in the contract for the signature of the purchaser. The disclosure shall be boldfaced and conspicuous type which is larger than the type of the remaining text of the contract.' S-MS-CODE-73-59-11