Proposal to modify para. 7.6.3. to specify a 10 ± 1 minutes hot soak period, modify para. 8.6.3. to provide calculation options for specific emissions using either 0.14/0.86 or 0.1/0.9 weighting factors for cold and hot start tests, amend para. 6.3.5. to revise engine cycle work calculations, amend para. 6.6.2. to clarify regeneration adjustment factor application, amend para. 7.4.7. to correct denormalization of engine torque, amend para. 7.8.4. and 7.8.7. to revise drift verification and validation statistics, amend Annex 4B para. 3.2. to insert and correct symbols and terms, amend paras. 8.4.2.3., 8.4.2.4., and 8.5.2.3.1. to revise density ratio definitions, and replace “dilution air” with “diluent” throughout paras. 3.1.10., 3.1.20., 3.2., 7.5.6., 7.6.6., 7.7.4., 8.1.2., 8.1.3., 8.4.3.1., 8.4.3.2.2., 8.5.2.3.1., 8.5.2.3.2., 8.5.2.3.3., 8.5.3.1., 9.2. table 7, 9.3.11., 9.4.6.3., A.3.1.3., A.3.2.1., A.3.2.2., A.3.2.3., A.3.2.4., and A.3.2.5.