National Guard, Reserve, "Gray Area" Retiree, and Surviving Spouses Space-available Travel Equity Act of 2010 - Authorizes space-available travel on military aircraft, on the same basis as active-duty members, for members of the reserves.
Authorizes such travel, on the same basis as members entitled to retired pay, for: (1) a member or former member of the reserves who is entitled to retired pay but for attaining the required age (generally, 60); and (2) unremarried widows and widowers of retired members entitled to retired pay or of members who died in the line of duty or as the result of a line-of-duty condition.
Authorizes such travel for certain dependents of such members, if accompanying the member.