The Federal Relocation Payment Improvement Act aims to simplify and improve the process for compensating federal employees who are relocated for government purposes. The main objective is to provide a one-time lump-sum payment to these employees instead of the traditional method of reimbursing various relocation expenses. Key provisions of the Act include the authority for agency heads to approve a lump-sum payment for employees who relocate in the interest of the government. This payment can replace the usual reimbursement process.