Introduction

The CSO Standard Quarterly Time Periods Classification (TXT 1KB)   is a classification of quarters of a calendar year. The CSO Classifications Board approved this classification on May 6th 2004.

Classification

This is a flat classification consisting of 5 categories, each with a 1-digit code.

Further Information

Further information on this classification may be obtained from:

Classifications and Standards Section
Central Statistics Office
Cork
e-mail:classifications@cso.ie