Nationality law of the People's Republic of China of the Ninth National People's Congress on December 29, 1998. Unlike the UK, Portugal did not have an overseas nationality, which means that residents of Macau had the same type of Portuguese nationality as those in Portugal. Unique provisions include clarification for individuals of both Chinese and Portuguese descent, who may choose either Chinese or Portuguese nationality without losing right to abode. Negotiations between China and Portugal over Macau were considerably smoother than those between the United Kingdom and China over Hong Kong, and in the former a pragmatic practical agreement was understood making double nationality possible "de facto" for
The Quality of Nationality Index proportionately on the basis of the ranking scale used by the GPI. External factors identify the quality of opportunities and diversity the holder of a nationality can pursue outside the country of origin. Diversity of Travel Freedom is based on how many destinations the holder of a particular nationality can visit without a visa or with a visa-on-arrival for short-term tourist or business purposes. The data is sourced from the International Air Transport Association IATA. The diversity of Travel Freedom accounts for 15% of the total QNI General Ranking scale. Weight of Travel Freedom evaluates the quality of the travel