tree-preservation-zone

There is a problem

1000 entries with tree-preservation-order field must match the reference field in the tree preservation order dataset

reference: TPO1960_003AIR_A_039
name: A39
tree-preservation-order: undefined
TPO1960_003AIR
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.719149 53.867730,-1.719271 53.867717,-1.719318 53.867415,-1.719274 53.867258,-1.719121 53.867021,-1.718944 53.866864,-1.718902 53.866568,-1.718981 53.866352,-1.718571 53.866332,-1.718248 53.866442,-1.717860 53.866448,-1.717531 53.865857,-1.718120 53.865734,-1.717667 53.865464,-1.717379 53.865312,-1.716670 53.865121,-1.716269 53.865421,-1.717353 53.865975,-1.717759 53.866526,-1.717955 53.867163,-1.717998 53.867379,-1.718485 53.867466,-1.718696 53.867492,-1.718884 53.867545,-1.718949 53.867755,-1.719149 53.867730)))
point: POINT (-1.718036 53.866466)
notes
entry-date: 2026-02-12
start-date: 1963-07-14
end-date

Your dataset is missing the tree-preservation-order column.

The Tree preservation zone guidance explains how to fix the issue:

The reference for the tree preservation order that covers this zone.