2018 26 USC 5801 – Imposition of tax

2010 26 USC 5801 – Imposition of tax

2013 26 USC 5801 – Imposition of tax

2012 26 USC 5801 – Imposition of tax

2014 26 USC 5801 – Imposition of tax

2015 26 USC 5801 – Imposition of tax

2017 26 USC 5801 – Imposition of tax