Specifications include, but are not limited to: Multiple Discrete Return, capable of at least 3 returns per pulse with a minimum of a first return and a last return and at least one additional intermediate return. All returns captured during acquisition shall be delivered. Return number shall be recorded. Intensity values are required for each return. The values are to be recorded in the .las files normalized to 16-bit as required by the LAS specification. Aggregate Nominal Pulse Spacing (ANPS) of no greater than 0.35 meter, dependent on the local terrain and landcover conditions. Assessment to be made against single swath, first return data located within the geometrically usable center portion (typically —90%) of each swath. Average along-track and cross-track point spacings should be comparable.