2024 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2023 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2022 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2021 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2020 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2018 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2017 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2015 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2014 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2013 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2012 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.

2010 43 USC 50b – Recording of obligations against accounts receivable and crediting of amounts received; work involving cooperation with State, Territory, etc.