Service is "the formal delivery of a writ, summons, or other legal process or notice" according to Black's Law Dictionary. In my calendar application I want to send notifications X minutes before events.I used the notification API with service worker as follow. High School Diploma or equivalent and a Valid Driver's License with acceptable driving record required at time of application. Licenses and Certificates: Some positions may require a Texas Class "C" Driver's License or equivalent from another state. The workaround I did in here is that i need to go to the page of the scoped page first, then when I test the notification again, it now works. First, you'll need to ensure notification permissions are granted. Then, simply run the test snippet (below) in the browser console. Use the Government Jobs tab to search through your municipality's employment opportunities. Begin your license search here to verify that a license holder has a current license with the Department of State Health Services.