Contract language is carried over from year to year and not aways updated by a legal time. Way back when, you couldn't prove that you notified a person of a contractual change unless you send the request via Certified Mail. So compared to a phone call or a first-class letter or a sticky note, Certified Mail carries some significant proof that communication was performed. Now days email may suffice, or even a FedEx letter, but contracts still often carry that Certified Mail verbiage. It might even be the case the some people want to make the communication process difficult and require Certified Mail just to slow people down. This would be a great time to remind you that sending Certified Mail through LetterStream can be done in 2 minutes and can be done from anywhere with internet access.