Essex Community College (ECC) implemented an onsite workplace literacy program for Martin Marietta (MM) employees with the cooperation of United Auto Workers (UAW) Local 738. Assisted by the working committees with representatives from all phases of the project, ECC and MM staff cooperated to develop a recruitment video, brochures, and presentation to encourage employees to be tested. A team of consultants completed literacy task analyses and interviewed workers, supervisors, managers, and directors. The educational objectives outlined reflected MM's manufacturing skill requirements. Skills were organized into class levels that formed the basic curriculum from which instructors targeted workplace needs of employees and collaborated with learners on individualized education plans. The curriculum was customized to the learners' needs through interviews, needs assessments, and course evaluations. Evaluation practices included frequent classroom visits, teacher conferences focusing on staff development in workplace literacy and best practices in adult education, and learner and supervisor surveys. Comprehensive Adult Student Assessment System testing provided a session by session evaluation of instruction. Learners made test gains in 40 hours of instructional time. (Contents include the presentation materials, evaluation reports, and data tables and charts. The final section, amounting to approximately one-half of the report, contains the curriculum with sample lessons.) (YLB)