#	Letters of Interpretation
1	07/20/2006 - 1926.55(a) - Whether it is mandatory to use a wet saw when cutting brick or concrete block.
2	07/20/2006 - 1926.55, 1926.55(a) - Whether it is mandatory to use a wet saw when cutting brick or concrete block.
3	03/27/1998 - 1926.55 - Special emphasis program for silicosis.
4	08/17/1977 - 1926.55(a) - Allowable TLV of coke gases at the breathing levels of the employees.