The primary aim of this chapter is to analyse the extent of, and limitations upon, the right to freedom of religion as set out in Article 18. There are two principal sources of assistance in undertaking such an analysis. The first is General Comment 22 issued by the HRC in 1993 pursuant to Article 40.4 of the ICCPR. This document fleshes out in greater detail the meaning of various parts of Article 18. The second is the decisions of the HRC in considering and determining the communications submitted to it.