-CHAINS OR SNOW TIRES ARE REQUIRED 18 MI NORTH OF THE JCT OF SR 299  /AT DANA RD/ (SISKIYOU CO) 
+CHAINS OR SNOW TIRES ARE REQUIRED FROM 18 MI NORTH OF THE JCT OF SR 299   (SHASTA CO) TO 1.5 MI SOUTH OF BARTLE (SISKIYOU CO) /DEAD HORSE SUMMIT/  
+CHAINS OR SNOW TIRES ARE REQUIRED FROM MCCLOUD TO 0.5 MI SOUTH OF THE   JCT OF I 5 (SISKIYOU CO) /MCCLOUD SUMMIT/