193 PART X — POSTAL SERVICES 42. 43. Postal services authorisations Postal rate regulation PART XI - ENFORCEMENT 45. 46. 47. Offences Investigations Enforcement proceedings Penalties PART XII — TRANSITIONAL PROCEEDINGS 48. 49. 50. 51. 52. 53. 54. 55. 56. Board of the Authority Proceedings Licences and authorisations Classification of licensees Tariffs Interconnection Agreements Enforcement Regulations Repeal