Table 6. Comparison of vesting provisions in defined benefit plans as of September 1, 1974, with initial ERISA vesting standards, by industry group
Industry group Percent of active workers in plans which satisfied ERISA requirements
All plans Plans with vesting

All industries

27 31

Manufacturing

35 39

Mining

17 38

Construction

20 20

Transportation

5 8

Communication and public utilities

13 13

Wholesale and retail trade

31 36

Finance, insurance, and real estate

24 26

Services

8 11