2024 22 USC 262 – President’s participation in international congresses restricted

2023 22 USC 262 – President’s participation in international congresses restricted

2022 22 USC 262 – President’s participation in international congresses restricted

2021 22 USC 262 – President’s participation in international congresses restricted

2020 22 USC 262 – President’s participation in international congresses restricted

2018 22 USC 262 – President’s participation in international congresses restricted

2017 22 USC 262 – President’s participation in international congresses restricted

2015 22 USC 262 – President’s participation in international congresses restricted

2014 22 USC 262 – President’s participation in international congresses restricted

2013 22 USC 262 – President’s participation in international congresses restricted

2012 22 USC 262 – President’s participation in international congresses restricted

2010 22 USC 262 – President’s participation in international congresses restricted