We have a major industrial development, being built on undeveloped land adjacent to a village/small rural town. For the village, LZ-1 is assumed. Now, in the LEEDv4 manual is stated, that Lighting Zone for the project is based on the lighting zone of the immediately adjacent property at the time construction begins. This implies, that the LZ for the industrial development would also fall under LZ-1.

However, in the The Model Lighting Ordinance (MLO) manual (p.5) it is also stated that Selection of lighting zone or zones should be based not on existing conditions but rather on the type of lighting environments the jurisdiction seeks to achieve. For instance, new development on previously rural or undeveloped land may be zoned as LZ-1.If we follow this interpretation, the industrial development would fall into the LZ-3.

Which interpretation is more appropriate here?