Get your Connect Online Access for Employment Law for Business 10e here today at the official University of Texas Rio Grande Valley Bookstore. This online resource offers a "plain English" explanation of both state and federal employment laws for employers.This textbook shows students how to manage effectively and efficiently, with full comprehension of the legal ramifications of their decisions. In the State of Texas, is it legal to write up an employee without their being present? A charge of discrimination is a signed statement asserting that an employer, union or labor organization engaged in employment discrimination. Federal employment laws and Texas employment laws apply based on specific employee thresholds. Here are the most critical laws. Completing Form W-4. Exemption from federal income tax withholding. Contact the Division at 1-800-452-9595.