Congress is the Legislative branch of the World Council, the government of First Nation. Members of Congress are known as High Councillors (not to be confused with "Chief Councillors," who are the heads of local village councils; to avoid such confusion, High Councillors are sometimes simply called Congressmen). High Councillors are elected for a term of five years. One of the primary purposes of Congress is to draft propositions, which are then sent to the High Court to be enacted as laws (or rejected). Congress also oversees various departments and agencies which regulate the country's infrastructure. Additionally, Congress has the power to impeach the monarch, by a two thirds vote. Congress convenes in Congressional Hall, in First Village.
The first session of Congress was held on 9 Win'yet, LY 905, the day after the inauguration of its original members, who had been elected to represent their villages on 8 Su'yet, 904. The number of High Councillors was, initially, two for each village (as well as First Sea and West Ocean, in the case of merfolk, who attend via t-mail). However, this was never intended to be permanent; it was merely a temporary arrangement, pending the completion of the First Census. Once the country's population had been determined, there would be one High Councillor for every 10,000 people living in each village (or body of water) of First Nation. In the cases of local populations under 10,000, one High Councillor would be elected. For populations in the tens of thousands, the number would be rounded up or down to the nearest 10,000 (for example, if a village has 14,999 people or less, it would elect one High Councillor; if it has 15,000 or more, it would elect two). The first session of Congress therefore had 44 High Councillors. The second session, in 906, had 53. As of 913, the Congress conists of 35 High Councillors.
Members of congressional departments (except their Directors) are not themselves members of Congress, and as such have not been voted into their positions by the general public. Rather, they are appointed by Congress (with the Director of each department being appointed by the monarch, from among the High Councillors). The following is a partial list of governmental departments overseen by Congress:
- Health Department (est. 913)
- Innovations Department (est. 913)
- Military Department (est. 912)
- State Department (est. 914)
- Federal Intelligence Bureau (est. 914)
- Transportation Department (est. 913)
- Treasury Department (est. 905)