These materials discuss as well as provide context to understand the significance of the most important judicial decisions and administrative rulings and regulations promulgated by the Service and Treasury during 2017. Amendments to the Code generally are not discussed except to the extent that they are of major significance, they have led to administrative rulings and regulations, or they have affected previously issued rulings and regulations otherwise covered by these materials. These materials focus primarily on topics of broad general interest—income tax accounting rules, determination of gross income, allowable deductions, treatment of capital gains and losses, corporate and partnership taxation, exempt organizations, and procedure and penalties. The materials deal summarily with qualified pension and profit sharing plans, and generally do not deal with international taxation or specialized industries, such as banking, insurance, and financial services.