Added areas 3562-63, datums 1025-26, proj 3818 and 3820, CRSs 3821-29, tfm 3830. For areas 1228 and 3315 amended area name. For ellipsoid 7050, changed name. For ellipsoid 7003, in remarks changed name of cross-referenced ellipsoid. For datum 6236, added "1950" to name, added alias and added realization epoch. For CRS 4236 and tfm 1152, added "1950" to name and added alias.