中国与许多国家依据维也纳外交关系公约的原则签订了双边关系协定,例如 CHAI ZEMIN大使代表中国与美国签订的双边协定(http://travel.state.gov/law/legal/treaty/treaty_1498.html)规定:“
The two governments agree to facilitate travel between their respective countries of persons who may have a claim simultaneously to the nationality of the United States of America and the People's Republic of China, but this does not imply that the governments of the two countries recognize dual nationality. Exit formalities and documentation shall be dealt with in accordance with the laws of the country in which such person resides. Entry formalities and documentation shall be dealt with in accordance with the laws of the country of destination“
这段声明的意思是:对于自称具有两国双重国籍的人,出入境的文件按照进入或离开目的国通常所要求的文件,虽然出入境文件这样处理,但这并不意味着两国承认双重国籍,换句话说,就是持哪国护照出入境,视为哪国公民而不承认同时具有两国国籍。持哪国护照出入境,视为哪国公民同时也是维也纳外交关系公约的原则。如果您还对此有疑问,您可以同美国政府有关部门确认,电话是202-647-5225
中国政府于2001年1月19日在人民日报上(http: //english.peopledaily.com.cn/english/200101/19/eng20010119_60848.html)谈到张昆仑外交事件时又再一次发表了对于持两本护照出入境问题的公开声明,公开重申了对持两本护照出入境问题的正式对各国政府和新闻机构的人民日报社论声明
“Under relevant agreement between China and Canada, whoever enters China on Chinese passport should be treated as a Chinese citizen“,这句话的意思就是明确告诉各国政府外交机构和新闻机构中国政府对于持两本护照出入境问题的外交原则,按照中国政府与加拿大政府的有关协定,加入外国国籍以后继续使用中国护照回中国的人将被视为中国公民,而并非法轮功所说的“自动丧失中国国籍“。