The BBIN MVA is a landmark framework agreement to facilitate the seamless flow of passenger, personal and cargo vehicular traffic between and among the BBIN countries. Bhutan withdrew from BBIN citing Pollution as the reason  ADB serves as the SASEC Secretariat, working with member governments to help implement SASEC projects and initiatives and to provide technical support. The SASEC Secretariat also coordinates capacity-building activities and works to identify necessary technical organizations and development partners to strengthen training and knowledge-building programs for member countries. It provides overall coordination, administrative and logistical assistance to the member countries. The SASEC Secretariat is reaching out to more SASEC members and those interested in the benefits of regional cooperation through Twitter and Facebook.