It is granted to those Running Staff of Indian Railways who are held up at any station other than headquarters due to an accident for a period exceeding 8 hours. If the period of detention < 8 hours, no payment is made, but the period of detention is counted towards hours of duty. Presently the payment is made at the rate of Kilometreage Allowance equal to 70 km for every 24 hour or part thereof, reckoned from time of commencement of detention.