What is class 03.30, support activities for fishing and aquaculture?

Class 03.30 covers support activities for fishing and aquaculture. It was created with a new group 03.3, support activities for fishing and aquaculture, in NACE Rev. 2.1, as paragraph 137 states. The class is the single class in the new group. The creation is a statistical change. No code for a specific reader is determined by it.

What does the creation add to Section A?

Section A covers agriculture, forestry and fishing, and division 03 covers fishing and aquaculture. Before the revision, division 03 contained groups for fishing and for aquaculture, and support work for those activities sat inside the groups or in the neighbouring support groups for agriculture, according to the old notes. The new group 03.3 gives support activities for fishing and aquaculture a group of their own, inside the division they support, in the same pattern as the support groups for crop production and animal production in division 01. The pattern is structural: each production division in Section A now has its support work grouped inside the division, where the notes state the contents, rather than held inside the production groups themselves.

The single class structure of the group deserves attention. Group 03.3 contains a single class, 03.30, with the same title as the group. The group and class titles match, because the group contains only that class, in the same pattern as the single class groups elsewhere in the classification, such as group 63.1 and class 63.10. The single class structure does not mean the support work is narrow in scope. It means the manual has not divided the support work further at class level in this revision. The note for the class states the scope of the support work in full, and section 4 does not reproduce the note. This guide does not state an inclusion list for the class that it has not verified from the note.

How does a new group differ from a split?

A new group created with a single class differs from a split in an important respect. A split divides an existing category into two or more categories, and the correspondence table records the division. A new group gathers work that previously sat in other categories, or work that was not separately identified, under a new heading, and the correspondence table records the gathering from several sources. Paragraph 137 states the creation of the group and class together, without naming a single source class, which signals that the content was gathered rather than split. The correspondence table is the authority for the sources, and it must be read before the new group is described as a split of any particular old class.

The same distinction applies to the other new groups created in the revision, such as groups 43.4, 43.5 and 43.6 in construction, stated in paragraph 155, and group 63.1 in computing infrastructure, stated in paragraph 171. Each new group gathers or separates work under a new heading, and each must be read from its notes and its correspondence entry, not from a general assumption about splits. The new group in division 03 is the smallest example of the pattern, with one group and one class, and it is therefore the clearest example for learning the distinction: a new heading, a single class, and a correspondence entry that must be checked, rather than assumed.

How is the new group laid out?

| Level | Identifier | Title |

|---|---|---|

| Section | A | Agriculture, forestry and fishing |

| Division | 03 | Fishing and aquaculture |

| Group | 03.3 | Support activities for fishing and aquaculture |

| Class | 03.30 | Support activities for fishing and aquaculture |

The table follows paragraph 137 and the detailed structure. The group and class titles match, and the division title states the production activities the support work serves. The table states the place of the class. The note states its content, and the correspondence table states how its content relates to the old structure. The table must not be quoted as a statement of the content of the class.

What does a new class not decide?

Except where the manual states the source in section 4 or in an explanatory note, no guide in this cluster says which old classes supplied the content of a new class. The guide states plainly when the manual gives no source, and points to the correspondence table, where the relationship is recorded class by class. Inventing sources from a title would misstate the revision, inviting an assumption of a one to one mapping that the table does not support. The guardrail states the limit in direct terms, and the body below restates it afresh for this guide.

Where is a new class confirmed?

A new class is confirmed by its explanatory note and by the correspondence table entry for its relation to the old classes, and the entry for the unit concerned is confirmed with the national statistical institute or business register holding the record.

Read the new group as a gathering under a new heading, check the correspondence entry for its sources, and confirm the entry with the institute or register that holds it.