3. 4. The Committee of Senior Officials shall: (a) report to the Committee of Ministers on matters relating to the implementation of the provisions contained in this Protocol; (b) supervise the work of the Secretariat; (c) clear the documents prepared by the Secretariat to be submitted to the Committee of Ministers; (d) invite the Secretariat to make presentations on gender and development to the Committee of Ministers, as and when necessary; and (e) liaise closely with both the Committee of Ministers and the Secretariat. The SADC Secretariat shall: (a) facilitate and monitor reporting by States Parties on the implementation of the Protocol; (b) coordinate the implementation of this Protocol; (c) identify research needs and priorities in gender/women's affairs areas; and (d) provide technical and administrative assistance to the Committee of Ministers and the Committee of Senior Officials. ARTICLE 35 IMPLEMENTATION, MONITORING AND EVALUATION 1. States Parties shall ensure the implementation of this Protocol at the national level. 2. States Parties shall ensure that national action plans, with measurable time frames, are put in place, and that national and regional monitoring and evaluation mechanisms are developed and implemented. 3. States Parties shall collect and analyse baseline data against which progress in achieving targets will be monitored. 4. States Parties shall submit reports to the Executive Secretary of SADC once every two years, indicating the progress achieved in the implementation of the measures agreed to in this Protocol. 5. The Executive Secretary of SADC shall submit the progress reports to Council and Summit for consideration.