 units following this particular VCL NAL unit, the value of dependency_id shall be greater than or equal to dId. For all VCL NAL units with a value of dependency id equal to dId following this particular VCL NAL unit, the value of quality_id shall be greater than or equal to qId. For each set of VCL NAL units within a layer representation, the following applies: If arbitrary slice order, as specified in Annex A or clause G.10, is allowed, coded slice NAL units of a layer representation may have any order relative to each other. Otherwise (arbitrary slice order is not allowed), coded slice NAL units of a slice group shall not be interleaved with coded slice NAL units of another slice group and the order of coded slice NAL units within a slice group shall be in the order of increasing macroblock address for the first macroblock of each coded slice NAL unit of the same slice group. NAL units having equal to 12 may be present in the access unit but shall not precede the first VCL NAL unit of the primary coded picture within the access unit. NAL units having nal_unit_type equal to 0 or in the range of 24 to 31, inclusive, which are unspecified, may be present in the access unit but shall not precede the first VCL NAL unit of the primary coded picture within the access unit. NAL units having nal_unit_type in the range of 21 to 23, inclusive, which are reserved, shall not precede the first VCL NAL unit of the primary coded picture within the access unit (when specified in the future by ITU-T ISO/IEC). G.7.4.2 Raw byte sequence payloads and RBSP trailing bits semantics G.7.4.2.1 Sequence parameter set RBSP semantics The semantics specified in clause 7.4.2.1 apply. Rec. ITU-T H.264 (01/2012) G.7.4.2.1.1 Sequence parameter set data semantics The semantics specified in clause 7.4.2.1.1 apply with substituting SVC sequence parameter set for sequence parameter set. Additionally, the following applies. profile_ide and level_idc indicate the profile and level to which the coded video sequence conforms when the SVC sequence para