The federal government is the nation's largest employer, with over two million workers employed in the United States, U.S. Territories, and foreign countries. A majority of these employees work in the competitive service of the executive branch. Applicants for competitive service positions compete with other applicants and are evaluated according to objective standards. The executive branch includes two other service classifications—the excepted service and the Senior Executive Service (SES)—with hiring and removal standards that diverge from those prescribed for the competitive service. Positions in the excepted service are specifically excepted from the competitive service by statute, by the President, or by the Office of Personnel Management (OPM). SES positions are also not in the competitive service. The SES includes senior managerial, supervisory, and policy positions that are subject to a different pay scale, as well as different hiring and removal standards. This report examines the three service classifications, and reviews some of the central features and notable differences among these classifications. The competitive service consists of all civil service positions in the executive branch, except the following: positions that are specifically excepted from the competitive service by or under statute; positions to which appointments are made by presidential nomination for confirmation by the Senate, unless the Senate otherwise directs; and positions in the SES. The competitive service also includes non-executive branch positions and positions in the District of Columbia government that are specifically included in the competitive service by statute. OPM administers examinations for entrance into the competitive service. These examinations are meant to be "practical in character" and relate to "matters that fairly test the relative capacity and fitness of the applicants for the appointment sought[.]" OPM identifies the relative weights for the subjects in an examination, and assigns numerical ratings on a 100-point scale. Applicants who meet the minimum requirements for entrance to an examination, such as citizenship and residence requirements, and are rated 70 or more in the examination are eligible for appointment in the competitive service. These individuals are placed on registers or lists of eligibles. When an agency seeks to fill a competitive service position, it requests a certificate of eligibles from OPM. This certificate is to include enough names from the top of the relevant register to allow an agency appointing official to consider at least three individuals for every position to be filled. The competitive service includes several types of appointments. An individual selected for a continuing position is generally appointed as a career-conditional employee subject to an initial one-year probationary period. After three continuous years of service in a career-conditional appointment, an employee will be converted to a career appointment. A term appointment is a nonpermanent appointment for a period of more than one year, but less than four years. An agency may make a term appointment when the need for an employee's services is not permanent, but involves a special project, extraordinary workload, or reorganization. A temporary appointment is a time-limited appointment for a period not to exceed one year. An agency may make a temporary appointment to fill a short-term position or meet an employment need that is scheduled to end within a specified timeframe. Employees in the competitive service are generally paid in accordance with the General Schedule, a schedule of annual basic pay rates that consists of 15 grades, designated "GS-1" through "GS-15." The grades include 10 steps that provide for increasing rates of pay. An employee who has not reached the maximum pay rate for his or her position is generally advanced to the next step at specified intervals. General Schedule salaries are based on the principles that there is equal pay for substantially equal work within a local pay area, that any pay distinctions are based on work and performance, that federal pay rates are comparable with non-federal pay rates for the same level of work, and that any pay disparities between federal and non-federal employees should be eliminated. Employees in the competitive service who are not serving a probationary or trial period, or have completed one year of current continuous service in a position other than a temporary appointment limited to one year or less, maintain specified notice and appeal rights for adverse personnel actions. Before an agency may suspend such a qualifying employee for 14 days or less, the employee must be given an advance written notice that identifies the specific reasons for the suspension. The employee must also be provided a reasonable time to answer the notice and furnish affidavits and other evidence to support the answer. Similar notice is required before an agency may subject a qualifying employee to other adverse personnel actions. Before a removal, a suspension for more than 14 days, a reduction in grade or pay, or a furlough of 30 days or less, the agency must provide at least 30 days' advance written notice to the employee. The employee must also be given a reasonable time to respond to the notice and provide affidavits and other evidence to support the answer. Unlike suspensions for 14 days or less, these adverse actions may be appealed to the Merit Systems Protection Board (MSPB or Board), an independent, quasi-judicial agency that reviews and adjudicates specified personnel actions taken against qualifying federal employees. In general, an agency must establish three factors to withstand an individual's challenge of his or her adverse personnel action. First, the agency must prove, by a preponderance of the evidence, that the charged conduct occurred. Second, it must establish a nexus between that conduct and the efficiency of the civil service. Finally, the agency must show that the penalty imposed on the employee is reasonable. An agency's action may not be sustained if the appellant shows: (1) harmful error in applying the agency's procedures in arriving at its decision; (2) that the decision was based on a prohibited personnel practice; or (3) that the decision was not in accordance with law. About one-third of all federal workers are employed in the excepted service. The excepted service consists of those civil service positions that are not in the competitive service or the SES. Positions in the excepted service may be designated by statute or by OPM, and are not subject to competitive examination. OPM will exempt a position from the competitive service when it determines that an appointment through competitive examination is not practicable, or the recruitment of certain students or recent graduates would be better achieved through alternate recruitment and assessment processes. For example, OPM may determine that a position should be excepted from the competitive service because it is impracticable to examine the knowledge, skills, and abilities required for a position. Positions in the excepted service are categorized into four schedules. Schedule A includes positions that are not of a confidential or policy-determining character for which it is not practicable to examine applicants. Attorneys, chaplains, and short-term positions for which there is a critical hiring need are examples of schedule A positions. Schedule B also includes positions that are not of a confidential or policy-determining character for which it is not practicable to examine applicants. Unlike Schedule A positions, however, these positions require an applicant to satisfy basic qualification standards established by OPM for the relevant occupation and grade level. Individuals appointed to schedule B positions engage in a variety of activities, including policy analysis, teaching, and technical assistance. Positions in schedule C are policy-determining or involve a close and confidential working relationship with the head of an agency or other key appointed officials. These positions include most political appointees below the cabinet and subcabinet levels. An agency's senior advisor and special assistant positions are typically in schedule C. Finally, schedule D includes positions that are not of a confidential or policy-determining character for which competitive examination makes it difficult to recruit a sufficient number of certain students or recent graduates. Examples of schedule D positions include those involving science, technology, engineering, or mathematics (STEM) occupations and positions in the Presidential Management Fellows Program. Schedule D positions generally require an applicant to satisfy basic qualification standards established by OPM for the relevant occupation and grade level. Like employees in the competitive service, excepted service employees are generally paid in accordance with the General Schedule. In addition, excepted service employees maintain the same notice and appeal rights for adverse personnel actions. Some employees in the excepted service, however, must satisfy different durational requirements before these rights become available. So-called "preference eligibles" in an executive agency, the Postal Service, or the Postal Rate Commission must complete one year of current continuous service to avail themselves of the relevant notice and appeal rights. The term "preference eligible" refers to specified military veterans and some of their family members, such as an unmarried widow, and the wife or husband of a service-connected disabled veteran. Employees in the excepted service who are not preference eligibles and (1) are not serving a probationary or trial period under an initial appointment pending conversion to the competitive service, or (2) have completed two years of current or continuous service in the same or similar position, have the same notice and appeal rights as qualifying employees in the competitive service. The SES is a cadre of high-level government administrators who manage major programs and projects within most federal agencies. While they are considered federal employees within the civil service system, the SES is governed by a regulatory structure separate from the competitive and excepted services. As defined in statute, SES positions are generally managerial or supervisory positions that are classified above the GS-15 grade (or certain equivalent positions) and need not be appointed by the President and confirmed by the Senate. In these leadership roles, SES members may serve as intermediaries between top-level political appointees of an agency who seek to carry out the objectives of a particular President and career civil servants with institutional experience relating to relevant issues. According to a 2018 report, there are currently more than 7,000 permanent SES positions. There are two types of SES positions: (1) career reserved and (2) general. Career reserved positions must be filled with career appointees to shield certain SES roles from political influence. Generally, agency heads are to determine whether a particular SES position warrants a career reserved designation, to "ensure impartiality, or the public's confidence in the impartiality, of the Government." OPM regulations reflect the types of SES roles in which this designation is appropriate, including those involving adjudication and appeals, auditing, and law enforcement duties. General positions may be filled by career appointees, as well as other noncareer and limited term (i.e., political) appointees. There are four types of SES appointments: career, noncareer, limited term, and limited emergency appointees. The SES mainly consists of "career appointees" chosen through a merit-based competitive hiring process. As part of this process, each agency must maintain a recruitment program for career appointees, as well as at least one executive board that reviews qualifications and makes recommendations regarding SES candidates. An OPM-convened Qualification Review Board (QRB) must certify the executive and managerial qualifications of a selected candidate before a career appointment may be made to an SES position. Unlike career appointees, noncareer appointees are not subject to the competitive selection process, but agency heads must determine that these appointees meet the qualifications of the SES position. While noncareer appointees are not QRB-certified, OPM must approve these appointees. Limited term and limited emergency appointees make up a small subset of the SES, and their terms are non-renewable. These appointments are used when a position is needed for a specified period (such as to manage a special project), or a position is established to meet a "bona fide, unanticipated, urgent need." Limited term and limited emergency appointments are also subject to OPM approval. To restrict the politicization of the SES, Title 5 of the U.S. Code (Title 5) limits the number of noncareer and limited term appointees who may serve in SES positions. The SES pay structure is also distinct from the rest of the civil service. Title 5 specifies that the pay rate of each senior executive is based on the executive's individual performance or contribution to agency performance (or both), as measured under a "rigorous" performance appraisal system. Each federal agency must maintain at least one of these appraisal systems, subject to OPM standards, review, and approval. Performance appraisals of SES members may consider factors such as improvements in efficiency, productivity, and quality of work or service, cost efficiency, and performance timeliness. In response to earlier concerns that SES appraisal systems were flawed because most executives received the highest rating, Title 5 tasks OPM, in collaboration with the Office of Management and Budget, with the establishment and maintenance of a government-wide performance appraisal system certification process, in an effort to ensure that an agency's appraisal systems for SES employees make "meaningful distinctions based on relative performance." Title 5 also sets out different pay rates for the SES, with a minimum rate of basic pay equal to 120 percent of the rate for GS-15, step 1, and a maximum rate of basic pay equal to the rate for Level III of the Executive Schedule. But SES members' annual aggregate pay (that includes additional compensation such as bonuses, awards, and other payments in addition to basic pay) is capped at the rate for Level I of the Executive Schedule. If a senior executive's total compensation exceeds the aggregate limitation, the executive receives the overage in the following calendar year. To encourage federal agencies to establish and maintain an OPM-certified performance appraisal system, Title 5 allows for a higher range of SES pay for agencies that have these certified systems. Title 5 also articulates conditions and procedures for removing, suspending, or taking other adverse actions against a member of the SES. Career SES appointees who have successfully completed a one-year probationary period may be removed or subject to adverse action only for specified reasons. For example, an SES career appointee may be removed from the civil service or suspended for more than 14 days only for misconduct, neglect of duty, malfeasance, or failure to accept a directed reassignment or to accompany a position in a transfer of function. SES members must receive advance written notice about the action and opportunity to provide an answer or receive hearing, subject to exception. The senior executive may also appeal the employment action to the MSPB. A career appointee receiving a single unsatisfactory performance rating may be reassigned or transferred within the SES or removed from the SES. A career SES member who receives two unsatisfactory ratings in any period of five consecutive years, or twice in any period of three consecutive years receives less than fully successful ratings, must be removed from the SES. Affected SES career appointees must receive advance written notice of these actions. While these appointees may not appeal these actions to the MSPB, they may request an informal hearing before the Board. SES career appointees are also generally entitled to be placed in a civil service position at GS-15 or above (or an equivalent position). In comparison, noncareer, limited term, and limited emergency appointees are generally not subject to the same removal protections and may be removed from the SES at any time. The procedures for removal of noncareer and limited term appointees are largely not addressed in federal statute, and the terms and procedures for their removal are mainly at the discretion of the agency head. In response to concerns about performance and accountability of SES members employed by the Department of Veterans Affairs (VA), Congress recently created special removal requirements that apply to these positions. In 2017, Congress passed the Department of Veterans Affairs Accountability and Whistleblower Protection Act, which amended an existing provision concerning removal procedures for these covered senior executives. Under the 2017 Act, the VA Secretary has discretion to suspend, demote, remove, or take other actions against SES career appointees or other high-level executives if the Secretary determines that the individual's misconduct or performance warrants such action. To address SES job performance issues more expeditiously, SES employees at the VA Department are entitled to abbreviated notice and appeals rights, as compared to the removal procedures in place in other federal agencies.

Summary: According to the Office of Personnel Management (OPM), the federal workforce consists of an estimated two million civilian employees. Federal law categorizes these employees into three types of service—the competitive service, the excepted service, and the Senior Executive Service (SES)—that may be distinguished by different selection, compensation, and other standards. Title 5 of the U.S. Code (Title 5) contains most of the standards governing federal employment, and OPM is generally responsible for implementing these requirements. The competitive service largely consists of all civil service positions in the executive branch, other than (1) positions excepted from the competitive service by statute; (2) positions appointed by the President and confirmed by the Senate; and (3) the SES. Traditionally, OPM has administered examinations for entrance into the competitive service. These examinations are meant to be "practical in character" and relate to "matters that fairly test the relative capacity and fitness of the applicants for the appointment sought." Title 5 also authorizes OPM to prescribe rules allowing agencies to hire candidates directly under specified circumstances. The excepted service includes designated civil service positions that are not in the competitive service or the SES and are not subject to competitive examination. OPM maintains authority to exempt a position from the competitive service when it determines that an appointment through competitive examination is not practicable, or the recruitment of students or recent graduates would be better achieved through alternate recruitment and assessment processes. The pay structure for the competitive service and the excepted service is similar. Both services are typically paid in accordance with the General Schedule, a schedule of annual basic pay rates that consists of 15 grades, designated "GS-1" through "GS-15." This fixed pay scale is generally designed to reflect, among other things, equal pay for substantially equal work within a local pay area. Additionally, the competitive service and the excepted service generally have similar notice and appeal rights for adverse personnel actions. For example, before a removal, a suspension for more than 14 days, a reduction in grade or pay, or a furlough of 30 days or less, the agency must provide at least 30 days' advance written notice to the affected employee. The employee must also be given a reasonable time to respond to the notice and provide affidavits and other evidence to support the answer. Some adverse actions may also be appealed to the Merit Systems Protection Board (MSPB or Board), an independent, quasi-judicial agency that reviews and adjudicates specified personnel actions taken against qualifying federal employees. The SES is a corps of some 7,000 high-level government administrators who manage major programs and projects within most federal agencies. In these leadership roles, SES members may serve as a link between top-level political appointees of an agency and career civil servants within the agency. The SES is governed by a regulatory structure separate from the competitive and excepted services. While SES members are primarily career appointees chosen through a merit-based competitive hiring process, others are noncareer, limited term or limited emergency appointees (commonly political appointees) selected by agency leadership. To shield certain SES roles from political influence, some SES positions (career reserved positions) must be filled with career appointees, and Title 5 limits the number of noncareer and limited term appointees that may serve in SES positions. The SES pay structure is distinct from the rest of the civil service. Title 5 specifies that SES members are paid within a particular range based on an executive's individual performance or contribution to agency performance (or both), as measured under a performance appraisal system. In addition, Title 5 articulates special conditions and procedures for removing, suspending, or taking other adverse actions against a member of the SES. For example, career SES appointees who have successfully completed a one-year probationary period may be removed or subject to adverse action only for specified reasons, including misconduct and substandard performance. Career appointees must receive advance written notice of these actions, and an opportunity to appeal the action. In comparison, noncareer, limited term, and limited emergency appointees are generally not subject to the same protections and may be removed from the SES at any time.