Article I establishes the three branches of government, Legislative, Executive, and Judicial. It contains sections that define in greater detail the legislative branch, which is defined as a Senate and House of Representatives, which are to be called The Congress of the Republic of Texas. Members of the House are to be chosen on the first Monday of September and to hold their office for one year until other provisions are made. To hold a seat in the House, they need to be at least twenty-five, a citizen of the republic, and residing in the county or district represented for six months prior to the election. The House is not to consist of less than twenty-four or more than forty members until the population reaches one hundred thousand, and then it shall not be less than forty or more than one hundred members.