This publication contains instructional materials for both teachers and students for a course in automotive emission control. Instructional materials in this publication are written in terms of student performance using measurable objectives. The course includes 16 units. Each instructional unit includes some or all of the basic components of a unit of instruction: performance objectives, suggested activities for teacher and students, information sheets, assignment sheets, job sheets, transparency masters, tests, and answers to the tests. Units are liberally illustrated and are planned for more than one lesson or class period of instruction. Information for the teacher includes an instructional analysis of automotive emission control, and a list of tools and equipment needed. Topics covered in the 16 units are the following: introduction to automotive emission control; internal combustion engine pollutants; origin of internal combustion engine pollutants; heated air induction systems; evaporative emissions control system; engine modification; carburetor modifications; ignition timing system; spark advance controls; exhaust crossover system; exhaust gas recirculation system; positive crankcase ventilation system; air injection system; catalytic converter systems; electronic controls; and testing. (KC)