Presents information on the implementation on phase I of the Brady Handgun Violence Prevention Act (P.L. 103-159), which went into effect Feb. 28, 1994. Focuses on the number of & reasons for handgun purchase denials in selected jurisdictions. Addresses the extent of federal agency follow-up enforcement action regarding convicted felons & others who falsify their status on handgun purchase application forms. Discusses the effects of court cases challenging the constitutionality of the act. 26 charts, tables & graphs.