As set out in Section 13 of the Statistics Act 1993, the Director General of the Central Statistics Office shall have the sole responsibility for and be independent in the exercise of the functions of deciding – (a) the statistical methodology and professional statistical standards used by the Office; (b) the content of statistical releases and publications issued by the Office; and (c) the timing and methods of dissemination of statistics compiled by the Office.
The CSO has advised me that data is collected in the Quarterly National Household Survey on general conditions of employment, such as temporary/permanent, full-time/part-time, casual/seasonal, and related information regarding duration of employment and usual/actual hours worked. The CSO does not collect specific contractual information. There are currently no plans to alter this approach.