Title I also includes the pension funding and vesting rules described above. Section 1 begins with a vesting clause that confers federal executive power upon the president. Section 1 is a vesting clause that bestows federal legislative power exclusively to Congress. The Crown could make feudal grants of land vesting ownership in a Crown vassal. These entries are not contingent on vesting. The contract also included a vesting option for a sixth year. Vesting being a form or ownership so long as it remains a highway. The rule is directed entirely against remoteness in vesting. Military and civilian service cannot be combined to meet vesting requirements. In many cases vesting does not occur all at once.