Applicants admitted into this category are persons who must be 18 years of age and posses a minimum administrative experience and is following a course of study which will lead to a recognized professional qualifications, of NICBA.

This is second highest membership grade awarded to persons who must satisfy the council by meeting the requirements set below e.g. (a) Must not be less than 25 years of age. (b) Must be in Senior Management position as a head of department, Manager, Director of sizeable establishments, senior supervisors of multinational corporations. (c) Professional men and women in private practice with upward of 5 years post qualification experience. (d) Trade merchants who have specialized administrative abilities in the course of managing their businesses. - Must meet the minimum office structure specifications befitting an administrator of caliber in the opinion of the visiting inspection/appraisal team, successful applicants would use the designatory letters MCBA. - Must be doing this for 15 years and above.

This grade of membership is the third in the hierarchy of the National Institute. An applicant must be at least 22 years of age. He must in addition satisfy the following conditions: (a) Three years post degree/HND professional education in a continuous employment or engaged in full time business practice. (b) Six years post OND, NCE, and over ten years post WASC experience engaged in the work of administration or as Manager. (c) Those with Lower qualifications than WASC but managing reasonable business and meeting above minimum administrative requirements. In the opinion of the team of inspectors (under C”, such applicant would have satisfied the membership committee of his effort to improve by taking up the administrative course programme of the National Institute) (Members in this category can describe themselves with designatory Letters A.C.B.A.).

The fellowship grade which is the highest category of membership awarded to persons who have attained eminent achievements in the practice of administration and management principles or by outstanding contributions to the national development in this sphere.Fellows are not elected through individual applications, however, Board of fellows consider nominations by the national council of qualified members, and members who although possess no formal academic/professional qualifications but engaged in full time business with many years of experience and achievements in business administration may be considered. Members in this grade are entitled to use this designatory letters after their names. FCBA.

The National board of Council has also categorized the corporate bodies into four groups. Corporate Citizen members have the same privileges as individual members and could through the universal network programmes translate their roles, and making their impact felt as component part of the society. On meeting the highest standard requirements as given below and in the corporate application forms would be admitted forth with. (a) Corporate Citizen Fellow: This grade is the highest to be accorded to any mega corporate organisations with a turnover of 50 Billion Naira and above. (b) Corporate Citizen Member: This is the second highest in this corporate scenario and is granted to Large companies with turnover of between 1 Billion to 50 Billion Naira. (c) Corporate Citizen Associates admitted into this group are medium size companies or firms with turnover of 100 Million to 1 Billion Naira. (d) Corporate Citizen Affiliate: this category of corporate membership are made to small companies with turnover below 100 Million Naira and below. (e) However, the council uses varied umber of criteria for the assessments in addition to capital resource base.