Question for Zambia Institute of Human Resource Management

I would like to inquire about membership criteria. I have graduated with a Diploma in Business Administration and in Social work and i have been operating as a Human Resource Officer assistant for over 10 years. Currently i am a Human resource Officer for a private company. I want to obtain a licence and i would like to know the procedures , how much it going to cost me, the duration, and if there is any documentation required.