The examination focuses on whether the delegates meet the requirements as confirmed by election program and if new problems arise among them. The person elected can become a formal delegate only after he or she is proved qualified. For example, before the 15th CPC National Congress was held in 1997, 2,049 delegates were elected. But later, one was found to have committed serious mistakes. The electoral unit he was with submitted the case to the CPC Central Committee and his qualification of a delegate was cancelled. Therefore, 2,048 delegates participated in the 15th National Congress.

The strict election procedures guarantee that all delegates are model Party members who represent the majority of common people, and that the delegate structure is rational. Among the 2,120 delegates to attend the upcoming 16th National Congress, there are not only Party officials at various levels, but also representatives in the front line of production.

A large proportion of them have made outstanding achievements in fields of economy, science and technology, national defense, politics and law, education, publicity, culture, sanitation and public health, and sports, 88.5 percent of whom have won honorary titles given by ministries and provincial governments or higher authorities. The proportions of female and ethnic minority delegates are higher than that of female and ethnic minority Party members in the whole country.

Compared with the 15th National Congress, the delegates' average educational level rose greatly. There are 1,943 delegates who have received junior college or higher-level education, 8.2 percent higher than that of the 15th National Congress.

Among the elected delegates, 12 joined the Party during the First Revolutionary Civil War (1924-1927) and the Second Revolutionary Civil War (1927-1937), 17 joined the Party in the War of Resistance Against Japanese Aggression (1937-1945) and 24 joined the Party during the War of Liberation (1946-1949).

The other 2,067 joined the Party after the People's Republic of China was founded in 1949, accounting for 97.5 percent of the total. Among them, 677 joined the Party after 1978 when the Third Plenary Session of the 11th National Congress of the CPC was held to determine the reform and opening-up policy for the country. They account for 31.9 percent.

The age structure also becomes more rational. The average age of delegates is 52.5, 0.7 years younger than that of the 15th National Congress, with 1,338 being under the age of 55, accounting for 63.1 percent of the total.