81.   Some countries have already begun implementing the treaty on a voluntary basis.

82.   Some operators have made interim payments on a voluntary basis while they negotiate formal contracts with ICANN.

83.   Some U.S. Embassy staff have left the country on a voluntary basis.

84.   Some operators are making interim payments on a voluntary basis.

85.   Such reviews are now on a voluntary basis.

86.   Testing continues today, but on a voluntary basis.

87.   The article would allow developing countries to join the emission limits regime on a voluntary basis, without stating a specific time frame.

88.   The council resolution stressed that individual countries will continue to provide expenses and logistical support for the force on a voluntary basis.

89.   The current report was made on a voluntary basis, the U.S. Consulate said in a statement.

90.   The department currently collects such information on a voluntary basis.