(a)

1. (1) Fees for additional services may be based on lump-sum or hourly (not-to-exceed) unit prices.
2. (2) Additional services fees shall be agreed upon in writing prior to the encumbrance of expense.

(b)

1. (1) Multipliers for additional services may not be used in an attachment to a professional services contract or invoice for services unless approved by the department and the Design Review Section in the initial standard professional services contract.
2. (2) Design professionals may include a multiplier only where above normal and lengthy coordination of the additional services of outside specialized consultants is involved and approved by the department.
3. (3) This multiplier shall not exceed one and one-tenth (1.10) times the actual cost and should be clearly stated in any invoices for payment.

(c)

1. (1) Multipliers shall not be applied to equipment, material, or incidentals furnished to complete a project.
2. (2) Only consultant or personnel charges are applicable.