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: TPO1975_012_A_001
name: A1
tree-preservation-order: undefined
TPO1975_012
tree-preservation-zone-type: area
geometry: MULTIPOLYGON (((-1.547144 53.857028,-1.547633 53.857017,-1.547590 53.856255,-1.547549 53.854692,-1.547530 53.854306,-1.547509 53.853561,-1.547428 53.853561,-1.547427 53.853552,-1.547372 53.853551,-1.545894 53.853571,-1.545896 53.853328,-1.545805 53.853328,-1.545800 53.853306,-1.545640 53.853354,-1.545301 53.853569,-1.544069 53.853580,-1.543832 53.853556,-1.543554 53.853558,-1.543433 53.853703,-1.543432 53.853726,-1.543482 53.853765,-1.543487 53.853803,-1.543477 53.853873,-1.543482 53.853890,-1.543587 53.853958,-1.543625 53.853991,-1.543664 53.854051,-1.543829 53.854076,-1.543870 53.854093,-1.543919 53.854166,-1.543923 53.854313,-1.543905 53.854405,-1.543913 53.854517,-1.543902 53.854550,-1.543901 53.854653,-1.543834 53.854775,-1.543949 53.855214,-1.544257 53.855370,-1.544175 53.855489,-1.544109 53.855605,-1.544082 53.855672,-1.544049 53.855831,-1.544005 53.855915,-1.543898 53.856472,-1.543912 53.856936,-1.543983 53.856969,-1.545394 53.856995,-1.546812 53.857036,-1.547144 53.857028)))
point: POINT (-1.545734 53.855253)
notes
entry-date: 2026-02-12
start-date: 1975-07-24
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.