The main reason that employers want to have a probationary period is to make themselves feel less guilty if the newhire doesn't fit or can't do the job. When an employee is placed on probation, the supervisor will provide the employee with a copy of a memo describing the terms of the probation.Learn about the employment probationary period, its purpose, legal protections, and best practices for managing new hires effectively. This article explains common employment contract provisions in employment contracts in Texas. A 90 day probation period typically isn't a time period where you are guaranteed employment, but an evaluation period that may entitle you to benefits. Explore the probation laws in Texas, from its definition and purpose to types and conditions. Read our guide today. In the US this is entirely legal to do. Most companies however don't call this a "probation period" even though it is effectively the same. (2) Non-civil service employees do not serve a probationary period after either an initial appointment or a promotion.