3 37. Application for and issue and publication or refusal of licence. 38. Terms and conditions of licence. 39. Form and period of validity of licence. .40. Register of licences. 41. Renewal of licence and annual licence fees. 42. Amendment of licence. 43. Suspension, cancellation and enforcement of licences. 44. Powers of Authority in connection with radio station licences. 45. Licensee to inform Authority of changes. 46. Transfer of licences prohibited. 47. Frequency bids. PART VII POSTAL SERVICES 48. Postal licensees to comply with licence and regulations. 49. Money orders and postal orders. 50. Delivery of postal articles. 51. Posting boxes. 52. Provision of postage stamps. 53. Official marks to be prima facie evidence of certain facts denoted. 54. Recovery of postage and other sums due in respect of postal services. 55. Undeliverable postal articles. 56. Restriction on opening of postal articles. 57. Detention and examination of postal articles. 58. Exclusion of liability of postal licensees. PART VIII TELECOMMUNICATION SERVICES AND SYSTEMS 59. Interpretation in Part VIII. 60. Telecommunication licensees to comply with licence and regulations. 61. Interconnection between telecommunication licensees. 62. Approval of telecommunication apparatus. 63. Special provisions relating to telecommunication telecommunication systems. 64. Use of certain conduits for telecommunication purposes. licensees operating