(a) Contracts for services performed as an independent contractor in a professional capacity, including but not limited to the services of an accountant; attorney; architectural or land use planning consultant; physician or dentist; registered professional engineer; appraiser or surveyor; passenger aircraft pilot; aerial photographer; or data processing consultant.

(b) Contracts for services as an artist in the performing or fine arts, including but not limited to persons identified as photographer, filmmaker, painter, weaver, printmaker or sculptor.

(c) Contracts for services of a specialized, creative and research-oriented, noncommercial nature.

(d) Contracts for services as a consultant.

(e) Contracts for educational and human custodial care services.

(a) Contracts, even though in a professional capacity, if predominantly for a product, e.g., a contract with a landscape architect to design a garden is for personal services, but a contract to design a garden and supply all the shrubs and trees is predominately for a tangible product.

(b) A service contract to supply labor which is of a type that can generally be done by any competent worker, e.g., janitorial, security guard, crop spraying, laundry and landscape maintenance service contracts.

(c) Contracts for trade-related activities considered to be labor and material contracts.

(d) Contracts for services of a trade-related activity, even though a specific license is required to engage in the activity. Examples are repair and/or maintenance of all types of equipment or structures.