The City of Houston does not charge for this service. However, if you have notifications sent to your cell phone your cell phone carrier may charge a fee for processing such messages. Please check your cell phone service agreement before having messages sent to your cell phone. To receive email your pc must have an internet connection. Internet connections require a carrier (telephone or cable company) and an Internet Service Provider (ISP.) Please check your agreements with these providers as to charges or limitations that they may impose on email or other internet traffic. The City of Houston is not responsible for any charges that you may incur from your use of this system.