Group 823 - Organization of conventions and trade

PSIC Group 823 covers Organization of conventions and trade. Direct children below it include Organization of conventions and trade shows. It clusters closely related activities and helps compare nearby classes before...

Level Group

Hierarchy depth 3/5

Children 1

Last verified 2026-10-21

Key facts

Code summary

Code 823

Official title Organization of conventions and trade

Version PSIC 2019

Source layer PSA / BSP

Parent 82 - Office Administrative, Office Support and other Business Support Activities

Section N - Administrative and Support Service Activities

Next step

Child codes

These are the next codes most users should open after this hub page.

8230

Organization of conventions and trade shows

Nearby codes

821

Office administrative and support activities

822

Call centers and other related activities

829

Business support service activities, n.e.c.

About this level

Practical summary

Group 823 sits in the PSIC 2019 hierarchy under N Administrative and Support Service Activities > 82 Office Administrative, Office Support and other Business Support Activities. This group usually narrows the choice to a small family of classes such as Organization of conventions and trade shows. It is useful when two or three neighboring activities look similar but should not be collapsed into one code.