An audit shows one MBTA worker increased his pay significantly last year because he approved his own overtime hours.

The review shows the man earned more than 2,600 overtime hours last year, and earned nearly $330,000.

Despite the maintenance foreman approving his own overtime, officials say there was no evidence of inappropriate conduct.

The MBTA says the man retired last month.

According to the review, the T’s overtime costs accounted for more than $75 million last year.

Auditors say the T lacks formal overtime policies and that another problem is that some accepted timesheets that had pre-printed supervisor names on them.

The T says the issue of workers signing off on their own overtime hours is not a widespread problem.

According to the agency, overtime spending has been cut by about 30 percent so far this year.

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