One Big Beautiful Bill Act This bill reduces taxes, reduces or increases spending for various federal programs, increases the statutory debt limit, and otherwise addresses agencies and programs throughout the federal government. It is known as a reconciliation bill and includes legislation submitted by 11 House committees pursuant to provisions in the FY2025 congressional budget resolution (H Con. Res. 14) that directed the committees to submit legislation to the House Budget Committee that will increase or decrease the deficit and increase the statutory debt limit by specified amounts. (Reconciliation bills are considered by Congress using expedited legislative procedures that prevent a filibuster and restrict amendments in the Senate.) TITLE I--COMMITTEE ON AGRICULTURE This title addresses a wide range of Department of Agriculture (USDA) programs, including by changing the Supplemental Nutrition Assistance Program (SNAP) and extending programs authorized by the Agriculture Improvement Act of 2018 (commonly known as the 2018 farm bill). Subtitle A--Nutrition (Sec. 10001) This section prohibits USDA from increasing the cost of the Thrifty Food Plan (TFP) based on a reevaluation or update of the contents of the TFP (i.e., the market basket of goods). Further, any annual adjustment to the cost of the plan must be based on the Consumer Price Index for All Urban Consumers. As background, USDA created the TFP (the cost of purchasing a nutritionally adequate low-cost diet), which is used to determine maximum monthly benefits under the Supplemental Nutrition Assistance Program (SNAP). USDA calculates the cost of the TFP each year to account for food price inflation. Maximum allotments are set at the monthly cost of the TFP for a four-person family, adjusted for family size. Under a provision of the 2018 farm bill, USDA must reevaluate the market basket of goods every five years based on current food prices, food composition data, consumption patterns, and dietary guidance. (Sec. 10002) This section expands the applicability of work requirements for SNAP recipients who are able-bodied adults without dependents (ABAWDs). As background, these SNAP recipients have work-related requirements in addition to the general SNAP work registration and employment and training requirements. Specifically, the section amends the exemptions to this requirement. First, the section applies the work requirements for ABAWDs to adults who are not over 65 years old, whereas these requirements currently apply to adults who are not over 55 years old. Second, the ABAWD exemption for a parent or household member with responsibility for a dependent child is restricted to a dependent child under the age of seven. Currently, the child must be under the age of 18. This section includes an exception for a person who is (1) responsible for a dependent child who is seven years of age or older, and (2) married to and resides with an individual who complies with the SNAP work requirements.