# Commission Regulation (EC) No 1737/2006 of 7 November 2006 laying down detailed rules for the implementation of Regulation (EC) No 2152/2003 of the European Parliament and of the Council concerning monitoring of forests and environmental interactions in the Community, Division (21): Removals and mortality

Extent: E+W+S+N.I.

Code 0: tree alive and measurable (new, note this is different than a missing value)
01 tree alive, in current and previous inventory (formerly blank)
02 new alive tree
03 alive tree (present but not assessed in previous inventory)
Code 1-: tree removed, disappeared
11 planned utilization (as in CC)
12 utilization for biotic reason (as in CC)
13 utilization for abiotic reason (as in CC)
14 cut, reason unknown
18 reason for disappearance unknown (as in CC)
Code 2-: tree still alive and standing, but no tree crown measurements taken or height measurements should not be used in stand or growth calculations.
21 lop-sided or hanging tree (as in CC)
22 not applicable, use 24 or 25 instead
23 not applicable
24 breakage of the tip(s) of the tree (shoot)
25 tree not in height growth sample
29 other reasons, specify
Code 3-: Standing dead (at least 1,3 m in height)
31 tree with intact crown, biotic reason (as in CC)
32 tree with intact crown, abiotic reason (as in CC)
33 crown breakage
34 stem breakage, below crown base and above 1,3 m
38 tree with intact crown, unknown cause of death (as in CC)
Code 4-: fallen alive or dead, (height below 1,3 m or tree stem or crown touches the ground at one place)
41 abiotic reasons (as in CC)
42 biotic reasons (as in CC)
48 unknown cause (as in CC)

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Source: https://www.legislation.gov.uk/eur/2006/1737/annex/I/chapter/15/division/4/division/21 (the official version)
Page: https://openlegislation.uk/eu-regulation-2006-1737/annex-I/chapter-15/division-4/division-21
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.