Discusses the impact of the Immigration Act of 1990 to U.S. employers. Provision of the law for a classification and quota system for allocating immigration visas; Benefits of the law to U.S. corporations that maintain operations abroad and foreign-owned U.S. companies with parent organizations abroad; Retention of the employment verification system which penalizes U.S. employer for knowingly hiring unauthorized workers or failing to maintain a records system checking employees' work authorization.