Drager BG4 Statements of Fact 2 Questions taken from 2017 Drager BG4 Statements of Fact Progress Indicator: Question 6 of 15 6.  How soon are regularly used travelways required to be sanded, salted, or cleared of snow? Choices: before the beginning of the shift within 3 hours immediately preceding the beginning of the shift within 24 hours as soon as practicable none of the above