Iowa Code § 481A.68: Tip-up fishing device.

1. As used in this section, “tip-up fishing device” means an ice fishing mechanism with an attached flag or signal to indicate fishing action, used to hold a fishing rod or pole with line and hook.

2. A person shall not use more than three tip-up fishing devices for fishing in the waters of the Mississippi river, the Missouri river, and the Big Sioux river, and their connected backwaters. A person may use two or three hooks on the same line, but the total number of hooks used by each person shall not exceed three. Each tip-up fishing device used in fishing shall have attached a tag plainly labeled with the owner’s name and address. A person shall not use a tip-up fishing device for fishing within three hundred feet of a dam or spillway or in a part of the river which is closed or posted against use of the device. Three tip-up fishing devices may be used in addition to the two lines with no more than two hooks per line, as specified in section 481A.72.

3. An untagged tip-up fishing device found in use shall be confiscated by any officer appointed pursuant to section 456A.13 or 456A.14.