jim or someone can you please explain how someone can go with labor substitution. i think i will match with the experience of other person who left the company after lc approval. can you please tell me how i can apply for labor certificate substitution. can i file directly for 140 or should i have to apply to dol. if i have to apply or tell dol about lc substitution, can apply for 140 along with it at the same time. will the lc substitution 140 take longer than the regular one for approval. what is the success rate of lc substitution 140 cases. any input is greatly appreciated. thanks.