period of six (6) months on terms and conditions as it may determine. (3) The Commission may, where it deems necessary, when granting provisional type approval to any equipment limit the number of units of such equipment that an applicant can hold until final type approval is given. (4) The Commission may extend the grant of the provisional type approval for one further period of six (6) months when it is of the view that the performance of such equipment within the provisional type approval period is satisfactory. Final type approval. 57. (1) All applications for final type approval shall be submitted in the prescribed Form No. 3 set out in the First Schedule five months after the grant of provisional type approval and shall indicate the date of grant of provisional approval; Provided that no provisional type approval shall lapse or expire while an application for final type approval is pending with the Commission. (2) Final type approval shall be granted where the Commission is of the view that the grant of such final type approval(a) is in the public interest; and (b) will not lead to harmful interference to any telecommunications and radio communication network or be a risk to human health or the environment. (3) The Commission shall inform the applicant in writing of the final type approval of an equipment or apparatus and shall issue the applicant with a registration number to display on the equipment or apparatus when the equipment or apparatus is being sold and used. (4) Where the Commission is of the view that an equipment or apparatus should not be type approved, it shall 47