The company clearly stipulates that being late is not allowed.
Tips
usage
明确 vs 明显: 明确 means 'clear/definite' (about intentions, rules, goals - precision). 明显 means 'obvious/evident' (about things that are easy to notice - visibility).
usage
明确 can function as both an adjective (明确的答案 - a clear answer) and a verb (明确方向 - to clarify the direction).
