N.J. Stat. § 30:3-8
Subject to the supervision and ultimate authority of the state board, the commissioner shall cause to be prepared all drawings, specifications and building contracts, determine the kind and quality of materials to be employed, interpret the meaning of drawings and specifications and adjudicate technical disputes between the state and its contractors, except as herein otherwise provided. Within the appropriation provided for any board, division, committee or commission of the department of institutions and agencies and with the approval of the state board, he may employ such technical advisers as the work of his office necessitates and with the approval of the state board and of the state house commission, he may pay for the services of architects, engineers and other technical assistants employed to prepare plans, specifications and drawings and for their superintendence from the appropriations for the building or buildings or public work they are retained to plan, design or supervise, at a rate which shall not be in excess of the schedule of minimum charges adopted by the American Institute of Architects, or by the American Institute of Electrical Engineers, or by the American Society of Mechanical Engineers, or by the American Society of Civil Engineers.
Institutional boards of managers or other agents or agencies of the state in charge of institutions, departments, divisions or commissions except the state board of education, for which appropriations have been made may nominate to the state board architects, engineers or other technical assistants whom they may recommend that the commissioner with the approval of the state board and of the state house commission, shall employ and the commissioner may consider these nominations in making recommendations for the employment of such assistants.
The commissioner shall cause to be prepared a map or plan of each institution, showing the layout of buildings, heating, lighting and power plants, water and sewage disposal works and all other approaches and appurtenances of each such institution.
N.J.S. § 30:3-8