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: TPO1983_016_A_004
name: A4
tree-preservation-order: undefined
TPO1983_016
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.511200 53.853516,-1.510980 53.853548,-1.510171 53.853690,-1.509064 53.853902,-1.509469 53.855301,-1.510062 53.855268,-1.510273 53.855245,-1.510418 53.855242,-1.510830 53.855201,-1.511190 53.855218,-1.511348 53.855195,-1.511397 53.855196,-1.511797 53.855246,-1.512017 53.855286,-1.512996 53.855496,-1.513173 53.855484,-1.513176 53.855494,-1.513597 53.855455,-1.513596 53.855446,-1.513777 53.855432,-1.513780 53.855443,-1.514175 53.855402,-1.514648 53.855367,-1.514488 53.854820,-1.513612 53.854885,-1.513377 53.854910,-1.513334 53.854759,-1.513275 53.854685,-1.513235 53.854648,-1.513175 53.854614,-1.513014 53.854559,-1.512909 53.854544,-1.512694 53.854529,-1.512588 53.854508,-1.512508 53.854482,-1.512353 53.854390,-1.512315 53.854348,-1.512259 53.854217,-1.512212 53.854148,-1.512142 53.854081,-1.512098 53.854053,-1.512019 53.854027,-1.511886 53.853999,-1.511715 53.853984,-1.511618 53.853966,-1.511547 53.853946,-1.511444 53.853902,-1.511400 53.853873,-1.511329 53.853801,-1.511200 53.853516)))
point: POINT (-1.511412 53.854644)
notes
entry-date: 2026-02-12
start-date: 1983-11-10
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.