Specifications include, but are not limited to: Third party administration (TPA) services, including record keeping, transaction processing, statement preparation, plan sponsor services and other customary third party administrator functions; Delivery of NTTA-selected investment options, such as mutual funds and comingled investment trust funds to the Plans, as an appropriately registered broker-dealer; Participant communication, education and counseling services, including on-site group educational workshops and/or seminars and individual participant counseling and enrollment meetings. Communication services include booklets, posters and other written and plan information materials, as well as internet and telephone based information delivery systems