A. 
The cost of all improvements required shall be paid by the developer, or so much thereof as the Board of Supervisors shall direct. If the actual installation of improvements is not completed prior to the utilization of the manufactured home park by tenants, the developer shall execute an agreement and post a bond with surety or other guarantee satisfactory to the Board of Supervisors and in an amount equal to or greater than the estimated cost of the uncompleted improvements. The Board of Supervisors may require that the bond or other guarantee be greater that the estimated cost of improvements to allow for inflationary cost increases.
B. 
If the streets are to become part of the state highway system, the bond required by the Department of Transportation shall be furnished as required and shall be in the possession of the Department of Transportation prior to final approval of the manufactured home park plans.
C. 
All construction work on physical improvements shall be subject to periodic inspection by a duly authorized public official so as to insure conformity with the approved manufactured home park plans. Upon completion of such improvements, a final inspection shall be conducted, and the appropriate public official shall issue certificates of approval thereof to the developer, and any bond or part thereof which may have been furnished for guarantee shall be released to the developer.