BPC § 8775.1

Persons meeting the requirements of this article may engage in and perform all photogrammetric services germane to this chapter, either as individuals, employees, or as independent contractors; provided, however, that the field surveys to be done are performed by registered civil engineers or licensed land surveyors, and in the preparation of any topographic map which contains the delineation of property corners or a property boundary or boundaries the work is certified or attested to by a registered civil engineer or land surveyor.