Belte r r a Cor p or at ion S afety M an ual D oc I D C H S M BE L 2 0 1 7 Pa g e 3 55 of 53 8 Doc u m e n t Identif icat io n S W P 015 P age Nu m b e r 1 OF 1 Doc u m e n t 1 st C r e at e d F e b 02 2010 Im p le m e n tat ion Dat e o n Re vised Doc u m e n t 0000 Do c um ent O bsole te as of Jun e 30 th 20 15 USE OF P ORTABL E LA DD ERS