2024 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2023 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2022 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2021 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2015 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2014 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2010 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred

2009 26 CFR 1.615-2 – Deduction of pre-1970 exploration expenditures in the year paid or incurred