The CASASTART Field Guide is the result of 9 years of research, experience, and evaluation in cities where the program has enhanced the capacity of communities to serve high-risk youth through formal partnerships that reduce their use of drugs and alcohol and promote their positive development. The Field Guide is a practical "how to" manual on implementing this program in the community. The manual provides clear and concise instructions on how to build a successful collaboration; develop trusting relationships with youth and their families; deliver the eight service components of CASASTART to every participant; and obtain funding and recognition to sustain your program. Appendixes include: Fund Development Web sites and Current and Former CASASTART Funding Sources. (Contains 11 references.) (ADT)