In a traditional auction, the intent is for multiple buyers to bid against one another by submitting bids to purchase a good or service that is for sale. Generally speaking, the bidder offering the highest price receives the item for sale and the seller benefits from receiving more money due to competition. In contrast, reverse auctions are intended to encourage multiple vendors to compete against one another to win a contract from the government by lowering the price for which the vendor is willing to sell a particular good or service. The buyer—typically a contracting official—then evaluates the technical proposals and bids, and selects a winning vendor—generally the bidder who submitted the lowest price bid with an acceptable proposal—to meet the government’s need. Figure 1 compares these two types of auctions. Reverse auctions can be opened to any vendor on the open market or can be limited to vendors that hold contracts on existing contract vehicles, such as indefinite-delivery vehicles under which the government has already determined that a specific group of vendors is qualified to sell specific goods or services. Existing vehicles provide a simplified way to procure commercial products and services. Agencies can use reverse auctions as a tool to further promote competition and lower prices, among other potential benefits. Agencies can use reverse auctions to order from various existing contract vehicles, including: The Army’s CHESS program. CHESS is the Army’s primary source for commercial information technology hardware, software, and services. DHS’s First Source II. First Source II is a 100 percent small business contract vehicle, specifically designed as a preferred source to acquire commercially available information technology commodities, solutions, and value-added vendor services to support DHS programs. GSA’s Federal Supply Schedules program. The Federal Supply Schedules provide federal agencies a simplified method of purchasing commercial products and services off of multiple schedules, from numerous vendors, at prices associated with volume discount buying. National Aeronautics and Space Administration’s Solutions for Enterprise-Wide Procurement (SEWP). SEWP allows federal agencies government-wide to purchase from over 140 vendors and offers a wide range of commercial advanced technology products and product-based services. Reverse auction providers can be private companies or offices within federal agencies, and the providers may provide reverse auction services across the government or to specific agencies. Since we last reported on this issue in December 2013, two federal agencies developed platforms to facilitate reverse auctions through existing contract vehicles, by adapting existing electronic platforms. In July 2013, GSA’s Federal Acquisition Service launched its platform, GSA Reverse Auctions, which was built off its e-Buy tool and initially offered reverse auctions for a limited number of GSA and VA Federal Supply Schedule contracts, expanding to additional schedule contracts and agency-specific multiple award contracts over the following 2 years. In November 2015, GSA Reverse Auctions expanded further to offer open market auctions. In January 2016, Army’s CHESS program launched a capability using its IT e-mart to run reverse auctions on certain CHESS contracts. Similarly to when the private sector builds a platform, new government capabilities have costs associated with development and ongoing maintenance. According to GSA officials, development of the reverse auction capability cost approximately $2 million, and operations and maintenance costs are expected to total about $650,000 over the next 3 fiscal years. According to CHESS officials, its capability was developed at no additional financial cost under the fixed-price contract for the IT e-mart, although there were opportunity costs because other lower priority actions were delayed. Table 1 includes information about the reverse auction providers we identified in our review. Reverse auction providers offer differing levels of service, ranging from simply providing a web-based reverse auction platform to a full-service model. Full-service providers may offer services such as creating draft auctions, soliciting vendors to participate, helping create a marketplace of vendors, and encouraging vendor participation for low-bid-count auctions. Agency buyers can select which additional services, if any, to use. FedBid is an example of a full-service provider, whereas Army CHESS provides a self-service web-based reverse auction platform, the IT e-mart. While the government pays some reverse auction providers directly, other reverse auction providers, including FedBid and GSA, collect reverse auction fees through an indirect payment process. Generally, in the indirect payment process, the reverse auction provider adds a fee onto the winning vendor’s bid. Then, the agency pays the winning vendor this total amount. In turn, the reverse auction provider collects the fee from the winning vendor (see figure 2). In December 2013, we reviewed the use of reverse auctions at four agencies—Army, DHS, Interior, and VA—and found that these agencies steadily increased their use of reverse auctions (in number and dollar value) from fiscal years 2008 to 2012. For auctions in 2012 across the four agencies, we found: Agencies awarded about 95 percent of reverse auctions for $150,000 or less. Information technology goods and services were among the top categories purchased. Products made up about 90 percent of total dollar value of awarded reverse auctions. 47 percent of reverse auctions were for orders from existing contracts. 80 percent of reverse auction dollars and about 86 percent of reverse auctions were awarded to small businesses. In addition, we found that the four agencies in our review did not maximize the potential benefits of reverse auctions—competition and savings. We found that over one-third of reverse auctions in 2012 had no iterative bidding and that it was unclear whether savings calculated for reverse auctions were accurate because cost estimates developed before the auction may have been set too low or too high. In addition, we found that almost half of the reverse auctions were used to obtain items from existing contracts. We further noted that there was a lack of comprehensive government-wide guidance and that the Federal Acquisition Regulation (FAR) did not specifically address reverse auctions, resulting in confusion about their use. We recommended the Director of the Office of Management and Budget (OMB) take steps to amend the FAR to address agencies’ use of reverse auctions and issue government-wide guidance to maximize competition and savings when using reverse auctions. OMB’s OFPP subsequently issued guidance in June 2015 on reverse auctions, and the proposed FAR changes are currently being reviewed prior to being published for public comment. Prior to 1997, the FAR prohibited agencies from using auctioning techniques. In 1997, the FAR was revised to eliminate these prohibitions as part of an overall effort to make the source selection process more innovative, simplify the acquisition process, and facilitate a best value acquisition approach. In June 2015, OFPP issued guidance to federal agencies on the effective use of reverse auctions. This memorandum reviewed the benefits of reverse auctions, offered a set of reminders to help contracting offices maximize the value of this tool, and asked agencies to work with OFPP in identifying and collecting data that can be used to evaluate and improve results. Specifically, the memorandum noted that some of the benefits of reverse auctions are price reductions, enhanced competition, and significant small business participation. In addition, the memorandum noted that reverse auctions are not a “one size fits all” solution and are likely to be most effective in the following circumstances: are steady and relatively simple and might otherwise be acquired using either a sealed bid or achieving best value through “low price technically acceptable” source selection criteria; and result in fixed price agreements. Typically, these circumstances exist in acquisitions for commercial items and simple services that often fall under the simplified acquisition threshold. The memorandum reminds agencies that, as with any procurement, market research must be conducted to understand the marketplace and to determine if it is reasonable to assume that the potential benefits of a reverse auction can be achieved. It also notes that agencies should regularly evaluate their experiences with reverse auctions and the effectiveness of existing practices and policies as part of procurement management reviews so that refinements can be made as necessary. The issues addressed in the OFPP memorandum have not yet been incorporated into the FAR. While the FAR does not specifically address reverse auctions, several provisions facilitate agencies’ use of them, such as allowing the use of innovative strategies and electronic commerce. We found the value of awarded reverse auctions decreased approximately 22 percent across the government between 2013 and 2017, from about $1.9 billion to about $1.5 billion. Although the number of auctions consistently decreased each year from 2013 to 2017, the dollar value of auctions increased after 2015, indicating that some individual reverse auctions have been for larger dollar values in the past couple of years (see figure 3). During this same period, the overall trend in federal contract obligations initially decreased from 2013 through 2015 and then increased overall through 2017—from about $490 billion in 2013 to $508 billion in 2017. Hence, since 2013, contracts awarded through reverse auctions have consistently represented less than 0.5 percent of federal contract spending. In addition, almost all auctions and the vast majority of the dollars agencies awarded between 2013 and 2017 resulted from the use of the FedBid reverse auction platform. We also found that the dollar value of awarded reverse auctions varied from 2013 to 2017 across the six agencies we reviewed, with total reverse auction value greater in 2017 than in 2013 for half of the agencies (DHS, Navy, and State) (see figure 4). Our analysis indicates that agencies’ and components’ policies may influence the use of reverse auctions. Specifically, two agencies that experienced substantial reductions in their use of reverse auctions changed their policies so that contracting officers would no longer be required to use reverse auctions. For example, Interior’s August 2015 policy rescinded a previous requirement to first consider using reverse auctions for commercial items using simplified procedures above the micro-purchase threshold and below the simplified acquisition threshold. The revised policy encouraged contracting officials to use procurement tools as appropriate, allowing for the use of reverse auctions at contracting officials’ discretion. VA’s Veterans Healthcare Administration—formerly one of the largest users of reverse auctions— revised its procurement manual in February 2014 to suspend the use of any reverse auction platform to conduct new reverse auctions. The Veterans Healthcare Administration amended its procurement manual again in October 2015 to lift the suspension of GSA Reverse Auctions, but kept in effect the suspension of all other reverse auctions platforms. VA and Veterans Healthcare Administration officials stated that they revised their policies following investigations about the use of reverse auctions at the Veterans Healthcare Administration by the VA Office of Inspector General. Other agencies and components we reviewed have policies that encourage the use of reverse auctions. For example: State’s May 2015 policy memorandum established a requirement that contracting officials first consider using reverse auctions conducted through FedBid for all noncomplex commodities. DHS’s Customs and Border Protection’s August 2014 standard operating procedure required that reverse auctions conducted through FedBid be given priority consideration when acquiring non-complex commodities. A Naval Supply Systems Command’s November 2014 policy letter required use of reverse auctions for commercial off-the-shelf supply items valued from $25,000 to the simplified acquisition threshold. The Army’s Mission Installation Contracting Command Desk Book has generally required use of reverse auctions for all acquisitions above the micro-purchase threshold for commercial supplies in certain categories. Overall, of the almost 15,000 reverse auctions conducted and awarded in 2016 by the five agencies for which we reviewed detailed data, we found that about 94 percent were for contracts valued below $150,000. However, we found that nearly two-thirds of the dollar value of awarded reverse auctions was for purchases above $150,000 (see figure 5). Further, we found that reverse auctions valued at more than $1 million in 2016 accounted for less than 1 percent of the number of auctions and 32 percent of the dollar value. Most (about 80 percent) of these higher- dollar-value auctions were for information technology-related products and services, while the remainder included hand tools, cabling equipment, radios, uniforms, air rifles, and vehicle trailers. Our analysis also found that the selected agencies generally used reverse auctions with fixed-price contracts, commercial items, products, and to promote small business participation—a few of the effective uses outlined in the June 2015 OFPP memorandum. For example, in terms of award value, 87 percent was for products and 13 percent for services. In addition, 60 percent of auction award value was for information technology-related purchases. Further, 83 percent of auction value was for awards made to small businesses. The agencies we reviewed obtained iterative bidding, indicating enhanced competition between multiple vendors, in nearly three-quarters of reverse auctions, and contracting officials cited reduced administrative burden as another key benefit, but determining the actual amount of savings is challenging due to data issues. Overall, in fiscal year 2016, the agencies we reviewed achieved iterative bidding for 75 percent of reverse auctions. However, in 20 percent of auctions only one bidder participated. Auctions representing nearly half of the value of State’s reverse auction awards had only one bidder, driven by large dollar value procurements, in part due to State’s requirement to use reverse auctions for all non-complex commodities without regard to expectations for competition. Contracting officials we spoke to cited reduced administrative burden, particularly at the end of the fiscal year, as a key factor in the decision to use reverse auctions. Based on data from reverse auction providers, reverse auctions that took place in 2016 resulted in contract awards that were an estimated $100 million below the government’s pre-auction estimate, though the extent to which this figure represents actual savings is difficult to determine. We found the agencies we reviewed achieved iterative bidding on 75 percent of auctions in fiscal year 2016, accounting for 68 percent of dollars spent. However, in 20 percent of the auctions, only one bidder participated (see figure 6). OFPP’s June 2015 guidance states that reverse auctions are likely to be most effective in highly competitive marketplaces. We found that auctions with iterative bidding resulted in award prices that were, on average, about 12 percent lower than pre-auction cost estimates, which generally reflect the government’s independent cost estimate. In contrast, this difference was about 6 percent among those auctions without iterative bidding. Of the 40 auctions we selected for in-depth review, we reviewed 29 auctions with iterative bidding. Review of the bid history for some of these auctions demonstrated the potential benefits of iterative bidding. For example: State awarded an approximately $4.3 million contract for night vision goggles following an open market reverse auction that got 110 bids from 16 vendors. The winning vendor bid 17 times and lowered its price by roughly 30 percent over the course of the auction, not including the reverse auction provider’s indirect fee. DHS’s Customs and Border Protection awarded an approximately $268,000 contract, including an option period, for tires following an open market reverse auction that got 35 bids from 13 vendors. The winning vendor bid three times and lowered its bid by roughly 25 percent over the course of the auction, not including the reverse auction provider’s indirect fee. Army National Guard Bureau awarded an approximately $14,000 contract for ice climbing equipment following an open market reverse auction that got 20 bids from 7 vendors. The winning vendor bid six times and lowered its price by roughly 10 percent over the course of the auction, not including the reverse auction provider’s indirect fee. Although three-quarters of 2016 auctions achieved iterative bidding for the agencies we reviewed, we found that in 20 percent of the awarded reverse auctions only one bidder participated, representing 27 percent of the dollars awarded. This percentage is higher than the percent of obligations on all 2016 competitive procurements for which there was only one offer received across the government (14 percent). However, this varied by agency. Four of the five agencies we reviewed had higher proportions of only one bidder participating on reverse auctions, by dollar value, than for their competitive procurements in general, particularly at State. The other agency, Interior, had a lower proportion of only one bidder participating in reverse auctions. Table 2 describes differences in competition for selected agencies in 2016. Our analysis indicates that requiring the use of reverse auctions through agency or component-level guidance may contribute to agencies obligating more money through reverse auctions that attract only one bidder. Specifically, State’s percentage of dollar value for auctions with one-bidder—almost 40 percent—was substantially higher than other agencies in our review and more than twice State’s percentage of dollars obligated on competitive procurements in general when only one offer was received. This was driven by the results of reverse auctions for larger dollar value contracts. In 2016, State awarded more auctions valued over $1 million than any of the other agencies we reviewed. Of 36 State auctions valued at more than $1 million, 13 had only one bidder— accounting for 27 percent of the total dollar value of State’s reverse auctions in 2016. State’s May 2015 guidance requires contracting officials to first consider using FedBid’s reverse auction platform for the acquisition of non-complex commodities, but does not mention competition or its benefits. While the policy allows contracting officers to seek waivers in certain circumstances, none of the potential exceptions listed in the policy include the expectation of a lack of robust competition. Some State contracting officials we spoke to said that the requirement encourages the use of reverse auctions even if there is not a reasonable expectation of competition. We reviewed four State auctions valued at more than $1 million where there was only one bidder. Contracting officials responsible for three of the four auctions cited the guidance as a reason they used a reverse auction. For example, State awarded a $12 million contract for brand name computer and storage infrastructure equipment following a 2-day reverse auction at the end of the fiscal year open to National Aeronautics and Space Administration SEWP vendors. The contracting official responsible for this auction told us that market research indicated that two SEWP vendors could meet their needs, but only one vendor had responded to inquiries during market research. However, she said that she used a reverse auction because State policy required it for contracts of this type. In the fourth instance, State officials acknowledged that other factors, including poor acquisition planning that resulted in tight timeframes, led them to use a reverse auction as a “crisis management tool”. State awarded a $19 million contract, including option periods, for construction support services in Afghanistan following a 17-hour reverse auction among Federal Supply Schedule vendors, although only one vendor had responded to market research inquiries. Officials said that they had sought to combine this contract with another set of services for which the same vendor was the only identified source likely to respond, but coordinating with the customers took too long, and they ultimately ran out of time before the predecessor contract was set to expire and services would stop. Under tight timeframes that risked the program losing critical services, contracting officials said they used a reverse auction because it allowed them to make a contract award quickly while still opening the requirement to multiple vendors, even though there was little chance of multiple vendors bidding. OFPP’s June 2015 reverse auctions guidance states that market research—the process used to collect and analyze data about the capabilities in the market to satisfy agency needs—must be conducted to understand the marketplace and to determine if it is reasonable to assume that the potential benefits of reverse actions can be achieved. State’s requirement to first consider using FedBid’s reverse auction platform for all non-complex supplies, even with exceptions, may contribute to State using and paying for reverse auctions when a different approach could garner more competition and potentially a better price. For the almost 15,000 auctions the five selected agencies conducted in 2016, nearly $590 million—about 65 percent—of total awarded reverse auction value was for orders on existing contract vehicles. We found that, in comparison to open market auctions, reverse auctions using existing contract vehicles had 1) higher rates of only one bidder participating, and 2) were less likely to have iterative bidding (see table 3). The 40 auctions we reviewed in-depth included 24 auctions that used existing contract vehicles, including 5 in which only one bidder participated—4 awarded by State and 1 by DHS’s Customs and Border Protection. However, our review of these examples did not identify clear reasons why auctions on existing contract vehicles have lower competition rates overall than open market auctions. Agency procurement officials told us that they are aware of variations in the competition obtained for particular existing vehicles more generally than when reverse auctions are used, and suggested that it would be useful to examine the competition dynamics for reverse auctions vehicle by vehicle. None of the agency guidance we reviewed comprehensively addressed how to use reverse auctions effectively when ordering from existing contract vehicles. Further, none of the five agencies we reviewed have collected data on or assessed why the number of reverse auctions with only one bidder on existing contract vehicles was significantly higher than reverse auctions using open markets. OFPP’s June 2015 reverse auctions guidance states that agencies should be evaluating their experiences with reverse auctions and the effectiveness of existing practices and policies so that refinements can be made as necessary. Standards for internal control require management to periodically review policies and procedures for continued relevance and effectiveness in achieving the entity’s objectives. Without understanding what factors indicate that conducting reverse auctions using existing contract vehicles is appropriate and providing this information to contracting officials so that they can consider it when developing their acquisition strategies, agencies may be using and paying for reverse auctions when another approach might yield better competition and pricing. Similar to what we found in December 2013, of the 35 contracting officials we interviewed, 29 cited ease of use and reduced administrative burden as key reasons why they chose to use reverse auctions, particularly at the end of the fiscal year. Officials noted that certain reverse auction providers, such as FedBid, offer acquisition support services in addition to the reverse auction platform itself that can decrease the workload for contracting officials. In particular, contracting officials noted the following as ways that reverse auctions assisted them in performing their responsibilities: The reverse auction provider performed functions such as building complex auctions and following up with vendors to encourage participation. In some instances, such as at State or Customs and Border Protection, FedBid provides support personnel on-site at agencies. Contracting officials told us that this is helpful because they are able to obtain in-person support for troubleshooting and time-sensitive purchases. Officials said that they used these additional services for 7 of the 29 FedBid auctions about which we interviewed contracting officials. Reverse auction platforms produced auction documentation that decreased the administrative burden of producing a contract file. For example, Army officials responsible for a $14,000 award for ice climbing equipment explained that the summary document produced by the FedBid platform includes much of the competition information, such as auction participants and bids, needed for the contract file. The reverse auction platforms enabled contracting officials to replicate past auctions for similar items, then update auction-specific information. For example, a DHS Immigration and Customs Enforcement contracting official responsible for a $38,000 award for detention uniforms said that he makes frequent purchases of the same items, so the ability to clone past auctions and update the quantities, pre-auction cost estimates, clauses, and sources (open market or existing contracts) saves a lot of time. He said that with other procurement methods he must re-enter procurement information each time. Reverse auctions enabled them to work on multiple procurements simultaneously, rather than sending emails or making phone calls to individual vendors to obtain quotes. For example, a DHS Customs and Border Protection contracting official responsible for two auctions we reviewed said that reverse auctions allow him to work on multiple contract awards at a time at the end of the fiscal year. Data we collected from reverse auction providers found that contracting officials make greater use of reverse auctions at the end of the fiscal year. While the agencies we reviewed made a disproportionate number of new awards in the last fiscal quarter of 2016—42 percent—reverse auctions were used even more heavily, with agencies conducting 53 percent of reverse auctions in the last quarter (see figure 7). Based on fiscal year 2016 data from reverse auction providers, Army, Navy, DHS, Interior, and State awarded contracts with values that totaled more than $100 million less than the agencies’ pre-auction cost estimates, after including any reverse auction provider fees (see table 4). The agencies we reviewed generally rely on reverse auction providers to report savings estimates to them. FedBid—the largest provider used by our selected agencies—and GSA Reverse Auctions generally calculate savings as the difference between the pre-auction cost estimate— represented by the auction’s “target price” set by buyer—and the award price, which is the winning vendor’s bid plus the reverse auction provider’s fee. In some cases, however, FedBid will modify this approach to account for potential shortcomings in the quality of pre-auction cost estimates. FedBid does this in two different scenarios. First, to correct for situations when using the agency target price results in abnormally high savings—generally defined by FedBid as savings more than 50 percent above the target price—instead FedBid uses a target price based on an average of bids received during the auction. FedBid representatives explained that these adjustments help avoid overstating savings caused by outlier target prices. Second, to correct for situations when the agency target price was lower than the winning bid, and would result in a calculated savings of less than $0, instead FedBid uses a target price equal to the winning bid, so that calculated savings equal $0. FedBid representatives explained that, in their opinion, a contracting official would not proceed with an award if the winning bid was higher than the target price unless the contracting official believed that the pre-auction estimate was invalid. Overall, we found that in 4 of the 33 FedBid auctions we reviewed, the awarded reverse auction prices were collectively $900,000 higher than the pre-auction cost estimates (which were used as the target prices). Prior to reporting savings to the agencies, FedBid adjusted the target prices to match the award values and reported that these auctions resulted in no savings. FedBid representatives said that they have provided details about this data normalization process to the contracting officers responsible for their agency contracts. We identified other approaches to calculating savings resulting from reverse auctions. For example, in December 2016, the Army negotiated a new contract with FedBid that established a different method for calculating savings in an attempt to isolate the savings due to the specific effects of reverse auctions. The Army calculates savings as the difference between the “initial leading bid”—the second bid usually—and the winning bid. GSA Reverse Auctions and Army CHESS have also calculated savings through different methods, including as the difference between the highest bid and the lowest bid, as well as between the winning vendor’s initial and lowest bids. Contracting officials acknowledged several challenges in using the pre-auction cost estimate as a baseline from which to calculate savings. For example: Contracting officials at Interior’s US Geological Services stated that it is critical to ensure that the pre-auction cost estimates they set in the reverse auction system are based on good market research, and that the target price is set at the lowest price they can obtain outside of a reverse auction. They noted that before conducting a reverse auction for water filters, these officials lowered the pre-auction cost estimate by about $450,000 from the program office’s initial cost estimate, to reflect a lower price identified in subsequent market research. During the reverse auction, Interior obtained five bids from four vendors, resulting in an award valued at $1.4 million, including option periods. The auction’s savings were then calculated to be $670,000. In another auction resulting in a $430,000 contract awarded by the Army for laptops, the contracting official noted that the pre-auction cost estimate was developed by the customer based on historic pricing. In turn, the price obtained through the reverse auction reflected a calculated savings of $67,000 or about 13 percent from the pre-auction estimate. However, the contracting official said that this method is not a reliable way to calculate savings as his customers typically use a high estimate to make sure they do not have to request additional funds. The contracting officer also noted that, in his experience, using historical pricing for technology products can be problematic since pricing changes very quickly as new technology is developed and old products become obsolete. We reported in December 2013 that it was unclear whether comparing auction award prices to the pre-auction cost estimate produced an accurate estimate of savings, as it depended on the quality of the pre-auction cost estimate, which is generally informed by market research. In our current review, contracting officials reiterated this perspective. Federal regulations provide flexibility in terms of the extent to which market research should be conducted, and how that research should be conducted, including for low dollar procurements. Because the FAR has not yet been amended to address any specific requirements for reverse auctions as we recommended in our previous report, we are not making additional recommendations on this issue. For reverse auctions conducted in 2016, the five agencies we reviewed indirectly paid more than $13 million in fees. Similar to our findings from our December 2013 review, we found that agency contracting officials we interviewed generally did not have a complete and accurate understanding of reverse auction fee structures. This hinders their ability to make informed decisions about when to use reverse auctions or which reverse auction platform to use for a specific procurement, potentially leading to paying more fees than necessary for reverse auctions for the level of service required. Our analysis of agency- and component-level guidance found that none of the agency-level guidance we reviewed fully informed contracting officials about the availability of reverse auction providers and platforms and any applicable reverse auction fee structures, nor did the guidance ensure that contracting officials would compare the options available to them when considering whether to use reverse auctions. In addition, agencies that used the services of FedBid, the largest reverse auction provider, did not always draft sufficiently detailed fee arrangements to ensure that the agencies were knowledgeable about and could conduct oversight of FedBid’s indirect fees. The five agencies we reviewed indirectly paid about $13.4 million in fees to reverse auction providers in 2016. As discussed previously, generally, in the indirect payment process, the reverse auction provider adds a fee onto the winning vendor’s bid. Then, the agency pays the winning vendor this total amount. In turn, the reverse auction provider collects the fee from the winning vendor. Agencies we reviewed primarily conducted reverse auctions using three reverse auction providers’ platforms in 2016. The agencies paid indirect fees to two of these reverse auction providers in 2016—FedBid and GSA—while the third provider, Army CHESS, did not charge a fee for its services. Indirect fees paid to FedBid and GSA generally varied from 0 to 3 percent of the value of the transaction, though both FedBid and GSA cap certain fees and will waive fees in certain circumstances. For example, GSA does not charge an indirect reverse auction fee for Federal Supply Schedule orders or agency contracts based on Federal Supply Schedule contracts. See table 5 for additional details on typical fee structures of reverse auction providers used by the agencies we reviewed. We found that none of the guidance we reviewed from the five agencies included the information needed to help ensure that contracting officials understand reverse auction indirect fees and their roles in assessing those fees. OFPP’s June 2015 guidance states that contracting officers should consider the amount of fees paid when evaluating whether the price of a product or service in a reverse auction is fair and reasonable, including any additional fees for use of another agency’s existing contract. This expectation is further established in agency guidance at the Army, DHS, and Interior. Our review found, however, that contracting officers generally did not understand how fees would be applied or the amount they would actually pay to use a reverse auction. This finding is consistent with our observation from our December 2013 report that agency officials were uncertain about how reverse auction fees were paid. Understanding reverse auctions’ costs is essential to making informed business decisions about when to use reverse auctions or which reverse auction platform to use for a particular procurement. Without such understanding, the risk increases that agencies may be paying more in fees than necessary for the level of service required. Agency officials we interviewed generally did not have an accurate understanding of reverse auction indirect fee structures. For example, acquisition policy officials at State told us that their contract with FedBid has no cost to the agency because the fees are paid from the companies that win the auctions and it is up to the companies whether or not to include the fee in their final price to the government. As discussed above, however, FedBid automatically adds fees on to all vendor bids. An official who was involved in developing policy related to reverse auction use at Interior told us that agency officials were not fully aware of the fee structure used by FedBid when they initially contracted for the company’s reverse auction services in October 2010. The official added that in hindsight, the fee structure is something that should have been more closely considered. Additionally, while the contracting officials we interviewed for the 30 auctions we reviewed that incurred an indirect reverse auction fee were generally aware that they were paying a fee, officials responsible for 28 of these 30 auctions were uncertain about one or more elements of the reverse auction fee structure. For example: Lack of understanding of fee amount charged: Contracting officials who conducted 18 of the 29 FedBid auctions in our review were not aware of the fee charged for the reverse auction. All but three of these officials told us that they generally do not see the fee amount because it is included in the vendors’ bids and is not broken out separately, so they evaluate the price inclusive of the fee. In response, FedBid representatives told us that since March 2014 they have offered functionality in the FedBid system that displays the fee separately. However, FedBid only turns this functionality on at the request of agency officials, which had not occurred at the time of our review. We found that procurement officials at all five of the agencies we reviewed were unaware that this feature was available. According to FedBid representatives, they have since notified the contracting officers responsible for their agency contracts about this feature. Confusion about circumstances for fee waivers or reductions: Although FedBid will waive or reduce its fee when the fee causes the auction to be above the pre-auction cost estimate or an established contract price, contracting officials responsible for 22 of the 29 FedBid reverse auctions did not accurately understand how this would work when we asked about it. For instance, some contracting officials at State and Customs and Border Protection told us in error that FedBid would waive its fee if there was only one bidder in an auction. Additionally, contracting officials for two auctions told us that they thought the fees associated with their auctions had been waived and expressed surprise when they learned the fee amount. For one auction, a State contracting officer told us that if she had been aware of the amount of the potential fee for an auction for construction services for which only one bid was received, she may have considered other alternatives for awarding the contract. Uncertainty about how fee caps are applied: While FedBid generally caps its reverse auction fees at $10,000 per transaction, officials we interviewed that were responsible for 20 of 29 FedBid auctions told us they were not aware of this or did not know the dollar threshold for the fee cap. Additionally, while increased competition is typically cited as a benefit of reverse auctions, we found that about 18 percent of fees paid to reverse auction providers in 2016—approximately $2.5 million—were for auctions in which there was only one bidder participating (see table 6 for detail by agency). Further, we found that agencies in our review indirectly paid approximately $3.3 million in fees for reverse auctions conducted in 2016 even when an alternative no-fee reverse auction platform was likely available. The availability of an alternative platform does not necessarily mean that the no-fee platform is the most appropriate option, because different platforms provide different levels of service. We did not determine whether particular platforms were more appropriate or resulted in lower overall prices to the government. However, we found that agencies paid these fees to FedBid to conduct reverse auctions for orders on Federal Supply Schedule contracts or Army CHESS contracts when they might have used GSA Reverse Auctions or the Army CHESS IT e-mart without paying a fee. Our 40 case studies included 10 auctions for orders off GSA’s Federal Supply Schedules or Army CHESS contracts that used FedBid rather than using GSA Reverse Auctions or the Army CHESS IT e-mart. For five auctions at Army and State, contracting officials told us they were required or strongly encouraged by agency or component policy to use FedBid. For the other five auctions, contracting officials told us that they preferred FedBid because it was easier to use or they were more familiar with it than GSA Reverse Auctions. Without considering which provider best meets its needs in these cases, the agencies may have paid more in fees than necessary for the required level of service. We found that none of the agency guidance we reviewed was sufficient to ensure that contracting officials understood reverse auction fees and their roles in assessing those fees. A clear understanding is necessary to make informed decisions about when to use reverse auctions or which reverse auction platform to use for a particular procurement (see table 7). We found that agency guidance we reviewed at two of the five agencies—Navy and State—did not address the role of contracting officials in understanding and assessing reverse auction fees. Specifically: Navy does not have agency-wide guidance that addresses the circumstances and processes for using reverse auctions. At the component level, the Naval Supply Systems Command’s November 2014 guidance states that contracting officials may use any available government or commercial reverse auction platform for reverse auctions, unless ordering off GSA’s Federal Supply Schedule or other contract vehicle posted at GSA’s eBuy site, but the guidance does not provide information about how contracting officers should consider reverse auction fees in deciding which platform to use. State’s guidance on reverse auctions does not address the role of contracting officers in considering reverse auction fees. As noted previously, State’s May 2015 policy memorandum requires that contracting officers first consider using FedBid for acquisition of all non-complex commodities unless a waiver is obtained. Guidance we reviewed at the other three agencies—Army, Interior, and DHS—did address the role of contracting officials in understanding and assessing reverse auction fees, although the level of detail varied among the three agencies. Specifically: A June 2015 policy alert from the Army stated that contracting officials are required to be aware of reverse auction fees and consider them in evaluating whether the price of the product or service being acquired is fair and reasonable. Similarly, Interior’s August 2015 guidance states that contracting officers need to evaluate the estimated amount of reverse auction fees that will be paid when assessing whether prices are fair or reasonable. DHS’s May 2017 guidance states that contracting officers need to understand the fees charged by a provider, and determine and document that the fee structure represents a fair and reasonable cost and offers the best value to the government. None of the agency-wide guidance we reviewed at the five agencies detailed the fee structure of each reverse auction platform used by the respective agency. As a result, contracting officials’ ability to understand and assess the fees—an existing requirement in OFPP guidance and at the Army, Interior, and DHS—is hindered. Neither State nor Interior had guidance that detailed the specific fee structures of reverse auction providers used by contracting officials at those agencies. While one Army command developed guidance on FedBid’s fee structure, the Army has not provided any agency-wide guidance on FedBid or GSA Reverse Auctions fee structures, even though the Army awarded reverse auctions valued at approximately $326 million using these two providers in 2016. Similarly, while the Navy’s May 2017 memorandum of understanding for using GSA Reverse Auctions informs contracting officials of GSA Reverse Auctions’ fee structure, the Navy does not have guidance that details FedBid’s fee structure. In 2016, the Navy conducted more than 10 times as many auctions using FedBid’s platform as it did using GSA’s platform. Additionally, we found that none of the agencies had agency-wide guidance that required contracting officials to consider whether no-fee reverse auction alternatives, such as GSA Reverse Auctions for Federal Supply Schedule orders and the Army’s CHESS IT e-mart for Army CHESS orders, would meet their needs. State, DHS, and Interior guidance does not address this issue at all. Similarly, while neither the Army nor Navy have agency-wide guidance that does so, each agency has component or command-level guidance that addresses this issue to a limited extent. For example, Naval Supply Systems Command guidance issued in November 2014 requires that contracting officials use GSA Reverse Auctions for products or services off the Federal Supply Schedule. More recently, according to Army officials, as of July 2017, the Army’s CHESS program began recommending that reverse auctions for orders off Army CHESS contracts be conducted using the Army CHESS IT e-mart. Standards for internal control in the federal government require agencies to develop policies that address operational processes and the responsibilities of individuals for carrying out those processes. Our review found that, while certain agencies or agency components had guidance that provided some information about reverse auction fees, none of the agency-level guidance we reviewed fully addresses contracting officials’ role in understanding and assessing reverse auction fees, details fee structures for reverse auction platforms used by the agency, or requires that contracting officers compare the options for reverse auction providers that are available to them, particularly regarding no-fee alternatives. Without such guidance, contracting officers are at risk of paying more in fees than necessary for the level of service they require. We found that while nearly all reverse auction fees were paid to FedBid since FedBid was by far the largest reverse auction provider used by the selected agencies, agencies’ approaches to contracting with FedBid did not result in sufficiently detailed fee arrangements to ensure that the agencies were knowledgeable about the fees they were paying and could conduct oversight of whether FedBid was applying indirect fees as expected. For the five agencies we reviewed that conducted reverse auctions using FedBid in 2016, two did not have documented agency- level fee arrangements with FedBid, while the other three had contracts that did not fully address at least one element of FedBid’s fees, as shown in table 8. Three of the five agencies we reviewed that used FedBid—Army, Navy, and State—had agency-wide contracts in place with FedBid, but we found that these contracts did not always document key aspects of the fee terms with FedBid. Specifically: Lack of clarification on how the fee cap applies to contracts with option years: FedBid representatives stated that their standard practice is that the fee cap will apply separately to each option year awarded. The Navy’s January 2018 contract with FedBid is consistent with this practice and explains how the fee cap will apply to contracts’ option years. In contrast, Army’s and State’s December 2016 contracts with FedBid do not specify how the fee cap would apply to option years. Contracting officials who were responsible for managing the FedBid contract at the Army told us they believed that the fee cap was a total of $10,000 per contract awarded, including for the base and all option years. Lack of detail on calculation of fee cap: Navy and State’s contracts with FedBid did not include full details on how the fee cap would be applied. As discussed above, FedBid generally caps its fee at $10,000. However, due to the way FedBid calculates fees, if the lowest bid is not selected, the fee on the selected bid may be over $10,000. We found that 19 reverse auctions in 2016 resulted in FedBid fees over $10,000. Neither the Navy’s January 2018 contract nor State’s December 2016 contract explains that the fee may be above $10,000. According to agency officials, DHS and Interior did not have agency-wide contracts with FedBid for reverse auctions conducted in 2016. While three DHS components had their own contracts with FedBid that were active in 2016, four additional components plus DHS headquarters used FedBid in 2016 without either an agency- or component-level contract in place. At Interior, the contract with FedBid expired in September 2015 and was not renewed, although contracting officials at Interior components continued to conduct reverse auctions on FedBid. Contracting officials at these agencies used FedBid’s services by agreeing to its standard terms and conditions each time they accessed the FedBid platform. FedBid representatives told us they consider the terms of use to be the contract between FedBid and the government when there is no agency- or component-level contract in place, and that this is similar to how commercial e-commerce marketplaces operate with federal agencies for micro-purchases. FedBid’s standard terms and conditions, however, do not provide detailed information on fees, such as the precise fee percentage charged or the amount of the fee cap. FedBid representatives told us that they typically charge federal agencies a 3 percent fee, but that fee details are not included in the standard terms and conditions because commercial and government customers may pay different fees. At DHS and Interior, when there are not agency- or component-level contracts in place and contracting officials use FedBid by agreeing to the standard terms and conditions, there is a risk that they may agree to fees or other terms that have not been reviewed and approved by agency acquisition and legal offices. Lastly, we found that only two of the agencies we reviewed—the Army (since December 2016) and the Navy (since May 2012)—required and received regular monthly reporting from FedBid on reverse auction fees paid indirectly by the agency. Both agencies also have contractual requirements for FedBid to provide this information annually, in addition to the monthly reporting. Army officials told us that requiring additional data in their December 2016 contract with FedBid was a result of lessons learned from their September 2012 contract, and was intended, in part, to improve oversight of fees paid. Army and Navy officials provided examples of FedBid reverse auction fee reports, and described how they used this information to oversee their contracts with FedBid. The Army and Navy also both requested and received monthly reports from GSA Reverse Auctions that included detailed information on fees. In contrast, DHS, Interior, and State did not require or receive regular reporting on fees from FedBid or GSA Reverse Auctions. As previously discussed, according to officials, DHS and Interior do not have agency- wide contracts with FedBid and, therefore, do not have a mechanism in place to require agency-wide reporting. Interior officials told us they do not receive any reports on fees paid from FedBid. For the two DHS components we reviewed, Immigration and Customs Enforcement officials told us that they received ad hoc reporting on fees paid to FedBid and provided us with a sample report that included fee data. While Customs and Border Protection’s contract with FedBid requires reporting on costs incurred by the government, officials told us that they do not receive any reporting on fees. State neither requires nor receives reporting on fees from FedBid. State and Customs and Border Protection officials told us that they do not receive such reporting since fees are paid by winning vendors and therefore there is no direct cost to the government to use FedBid. We found, however, that these agencies indirectly paid almost $4.2 million in fees to FedBid in 2016. Standards for internal control require agencies to appropriately document transactions and significant events to assist with oversight and help ensure that agency objectives are being achieved effectively and efficiently. Without a documented contract or arrangement in place between agencies or components and FedBid that provides a clear and common understanding of payment terms and fee structure, agencies lack sufficient information to conduct contract oversight to determine whether FedBid is applying its indirect fees as the agencies expect. Further, internal control standards emphasize timely and reliable information and data so that agencies can effectively monitor their operations. Without requiring reporting on reverse auction fees, agencies may not have sufficient information to understand and oversee their use of reverse auction platforms and conduct contract oversight to ensure that the fees they are being charged are appropriate. The landscape of reverse auctions has changed slightly since our last review in December 2013. There are more reverse auction providers, including government providers, in the marketplace, with the vast majority of auctions conducted through FedBid. The use of reverse auctions, however, continues to constitute a relatively small percentage of federal contract spending. For the most part, agencies are using reverse auctions to acquire low-cost, commercial products and benefitting from the ease of use and reduced administrative burden that reverse auctions can provide. Agencies are also achieving more robust competition in the form of iterative bidding on nearly three-quarters of reverse auctions. Despite this level of competition, however, precisely quantifying the amount of savings is inherently difficult. Given that the vast majority of auctions are small dollar procurements which are, by design, intended to be simpler and to pose less administrative burden on the acquisition workforce, it may be counterproductive to expend more time and resources to produce a better estimate of savings. Nevertheless, there is room for improvement in the guidance agencies provide to their contracting personnel to ensure the appropriate use of reverse auctions, increase benefits, and reduce costs. Agencies could benefit from paying more attention to rates of one-vendor participation, provider fee structures, and contracts with reverse auction providers. Across the agencies in our review, often only one bidder participates, in particular when agencies conduct a reverse auction using existing contract vehicles rather than opening the auction to all potential vendors. At State, its requirement for contacting officers to use reverse auctions for all non-complex acquisitions may result in reverse auction use in situations where it is not warranted; that is, without the type of highly competitive marketplace that can result in savings. Our work also identified a need for agencies to provide contracting officers better information on the fee structures so that they can make informed decisions as to whether to use a reverse auction and which reverse auction platform to use. Further, agencies are not requiring data on or analyzing the fees they are paying. The indirect nature of provider fees—combined with fee arrangements that are missing important details or are nonexistent and a lack of visibility into those fees—puts agencies at risk of paying more than necessary for the level of service needed. These issues are not new: we raised similar concerns in our report more than 4 years ago. Taken together, these issues put the government at risk of failing to maximize the benefits that the effective use of reverse auction can provide, and worse, put agencies at risk of paying millions of dollars more in fees than necessary for the level of service needed. We are making a total of 21 recommendations, including 3 to Army, 4 to Navy, 4 to DHS, 4 to Interior, and 6 to State. We are making the following seven recommendations to heads of agencies within the Department of Defense: The Secretary of the Army should: assess why reverse auctions that are conducted using existing contract vehicles have only one bidder at higher rates than reverse auctions conducted on the open market; determine what factors indicate that conducting reverse auctions is appropriate when using existing contract vehicles; and provide this information to contracting officials so that they can consider it when developing their acquisition strategies. (Recommendation 1) The Secretary of the Army should: document and provide information to contracting officials that describes available reverse auction providers and platforms, and any associated fee structures; and provide guidance, as appropriate, to contracting officials to ensure that they compare the options that are available to them when considering whether to use reverse auctions. (Recommendation 2) The Secretary of the Army should clarify with FedBid how fees apply when contract option years are exercised. (Recommendation 3) The Secretary of the Navy should: assess why reverse auctions that are conducted using existing contract vehicles have only one bidder at higher rates than reverse auctions conducted on the open market; determine what factors indicate that conducting reverse auctions is appropriate when using existing contract vehicles; and provide this information to contracting officials so that they can consider it when developing their acquisition strategies.(Recommendation 4) The Secretary of the Navy should review the agency’s current guidance to assess whether it adequately addresses contracting officer responsibilities to consider the cost of any fees associated with reverse auction options they may be considering when developing their acquisition strategies, and revise its guidance as appropriate. (Recommendation 5) The Secretary of the Navy should: document and provide information to contracting officials that describes available reverse auction providers and platforms, and any associated fee structures; and provide guidance, as appropriate, to contracting officials to ensure that they compare the options that are available to them when considering whether to use reverse auctions. (Recommendation 6) The Secretary of the Navy should clarify with FedBid how FedBid’s fee cap will be calculated. (Recommendation 7) We are making the following four recommendations to DHS: The Secretary of the Homeland Security should: assess why reverse auctions that are conducted using existing contract vehicles have only one bidder at higher rates than reverse auctions conducted on the open market; determine what factors indicate that conducting reverse auctions is appropriate when using existing contract vehicles; and provide this information to contracting officials so that they can consider it when developing their acquisition strategies.(Recommendation 8) The Secretary of Homeland Security should: document and provide information to contracting officials that describes available reverse auction providers and platforms, and any associated fee structures; and provide guidance, as appropriate, to contracting officials to ensure that they compare the options that are available to them when considering whether to use reverse auctions. (Recommendation 9) The Secretary of Homeland Security should determine if it would be advantageous for the agency to enter into contracts with third-party reverse auction providers. (Recommendation 10) The Secretary of Homeland Security should obtain timely information on how much the agency is paying for reverse auction services. (Recommendation 11) We are making the following four recommendations to Interior: The Secretary of the Interior should: assess why reverse auctions that are conducted using existing contract vehicles have only one bidder at higher rates than reverse auctions conducted on the open market; determine what factors indicate that conducting reverse auctions is appropriate when using existing contract vehicles; and provide this information to contracting officials so that they can consider it when developing their acquisition strategies.(Recommendation 12) The Secretary of the Interior should: document and provide information to contracting officials that describes available reverse auction providers and platforms, and any associated fee structures; and provide guidance, as appropriate, to contracting officials to ensure that they compare the options that are available to them when considering whether to use reverse auctions. (Recommendation 13) The Secretary of the Interior should determine if it would be advantageous for the agency to enter into contracts with third-party reverse auction providers. (Recommendation 14) The Secretary of the Interior should obtain timely information on how much the agency is paying for reverse auction services. (Recommendation 15) We are making the following six recommendations to State: The Secretary of State should review the agency’s current guidance to assess whether it leads contracting officials to use reverse auctions in situations where there is not a highly competitive marketplace, and revise its guidance as appropriate. (Recommendation 16) The Secretary of State should: assess why reverse auctions that are conducted using existing contract vehicles have only one bidder at higher rates than reverse auctions conducted on the open market; determine what factors indicate that conducting reverse auctions is appropriate when using existing contract vehicles; and provide this information to contracting officials so that they can consider it when developing their acquisition strategies. (Recommendation 17) The Secretary of State should review the agency’s current guidance to assess whether it adequately addresses contracting officer responsibilities to consider the cost of any fees associated with reverse auction options they may be considering when developing their acquisition strategies, and revise its guidance as appropriate. (Recommendation 18) The Secretary of State should: document and provide information to contracting officials that describes available reverse auction providers and platforms, and any associated fee structures; and provide guidance, as appropriate, to contracting officials to ensure that they compare the options that are available to them when considering whether to use reverse auctions. (Recommendation 19) The Secretary of State should clarify with FedBid how FedBid’s fee cap will be calculated and how fees apply when contract option years are exercised. (Recommendation 20) The Secretary of State should obtain timely information on how much the agency is paying for reverse auction services. (Recommendation 21) We provided a draft of this report to DOD, DHS, Interior, State, the Department of Housing and Urban Development, GSA, VA, and OMB. Collectively, the agencies concurred with 18 of the 21 recommendations we made, and did not concur with three. In its written response, reproduced in appendix IV, DOD concurred with our seven recommendations—three to the Army and four to the Navy— and stated that the department expected to complete actions to address the recommendations by the end of calendar year 2018. In its written response, reproduced in appendix V, DHS concurred with two recommendations and did not concur with two recommendations. DHS concurred with our recommendation that it assess why reverse auctions conducted using existing vehicles have higher one bidder rates and provide information to contracting officials about factors that indicate conducting reverse auctions using existing vehicles is appropriate. However, DHS did not believe that it needed to conduct an assessment specific to reverse auctions. The department stated that the factors that contribute to one bidder participating in other procurements—such as inadequate market research and poorly defined requirements—would similarly affect reverse auctions. Nevertheless, DHS stated that the Office of the Chief Procurement Officer will communicate to its contracting officials that when market research for a planned reverse auction buy on an existing contract vehicle demonstrates that only one bid is expected, a reverse auction must not be used to conduct the procurement. DHS expects to complete actions in response to this recommendation by the end of November 2018. DHS also concurred with our recommendation that it determine if it would be advantageous for the agency to enter into contracts with third party reverse auction providers. DHS stated that an assessment should be done periodically to determine if there is a need to have a department- wide reverse auction provider. In that regard, DHS stated that an assessment was conducted in 2016 to evaluate providers and platforms and, based on this evaluation, DHS made the decision to continue to provide contracting offices the flexibility to choose their own reverse auction provider. DHS stated that it believes its past actions address our recommendation. However, the intent of our recommendation is not to suggest that DHS consider whether to mandate a certain provider be used agency-wide. Rather, we are recommending that DHS assess whether agency-level contracts with reverse auction providers—be it one or several different providers—are desirable to protect against the risk that individual contracting officials may be agreeing to fees or other terms that have not been reviewed and approved by agency acquisition and legal offices. It is unclear whether DHS’s 2016 assessment considered these issues. DHS did not concur with our recommendation that it provide information to contracting officials regarding available reverse auction providers and fee structures and, as appropriate, provide guidance to contracting officials to ensure they compare available options for reverse auctions. In its response, DHS stated that there is limited value in centrally collecting and updating this information, and that it is the contracting officer’s responsibility, as a part of market research, to be knowledgeable about reverse auction providers and fee structures. DHS stated that its May 2017 reverse auctions policy requires contracting officers to understand the fees that will be charged and determine and document that the fee structure represents a fair and reasonable cost and offers best value to the government. DHS stated that the Office of the Chief Procurement Officer will issue an alert reminding contracting professionals of these responsibilities by the end of November 2018. Given the pervasive confusion we found among contracting officials about the fee structures of reverse auction providers, we continue to believe that DHS should document and provide information to contracting officials, which could help eliminate confusion and minimize the duplication of individual reverse auction users repeatedly collecting the same information. DHS also did not concur with our recommendation that it obtain timely information on how much the agency is paying for reverse auction services, stating that aggregating fee data at the department level would require systems changes or manual collection that would not inform DHS as to whether reverse auctions were used correctly or if the fee was too high. In this case, however, our work found that reverse auction providers have this data available upon request. As such, in lieu of making changes to systems or attempting to have contracting officers manually collect this information, we believe DHS could obtain this information from its reverse auction provider and use this information to help DHS understand what it pays for reverse auction services. This approach would also better inform the department in its periodic assessments of contractual relationships with reverse auction providers. In its written response, reproduced in appendix VI, State concurred with all six recommendations, and described actions the Office of Acquisitions Management intends to take to address them, including reviewing current guidance and revising it as appropriate; increasing contracting officer awareness through training and policy guidance; and engaging with its primary reverse auction provider to obtain a better understanding of the fee structure and timely reporting of fees. State did not provide information as to when it expected these actions to be completed. In its written response, reproduced in appendix VII, Interior concurred with three recommendations and did not concur with one recommendation. Interior concurred with our recommendation that it assess why reverse auctions conducted using existing vehicles have higher one bidder rates and provide information to contracting officials about factors that indicate conducting reverse auctions using existing vehicles is appropriate. The department stated that it will implement policy regarding the use of reverse auctions with existing contract vehicles. Interior also concurred with our recommendation that it provide information to contracting officials regarding available reverse auction providers and fee structures and, as appropriate, provide guidance to contracting officials to ensure they compare available options for reverse auctions. The department stated it would review and update guidance to provide contracting officials with current and relevant information on available reverse auction providers, platforms, and associated fee structures. Interior also concurred with our recommendation that it obtain timely information on how much the agency is paying for reverse auction services. Interior did not provide information as to when it expected the above actions to be completed. Interior did not concur with our recommendation to determine if it would be advantageous for the agency to enter into contracts with third-party reverse auction providers, stating that it would be more efficient to provide guidance to contracting officials so that they can make the best business decision. Interior officials told us verbally that they have already considered whether or not to enter into contracts with reverse auction providers and determined that it is not to the department’s advantage to do so. Interior officials told us they would provide us information about the factors considered in making this decision, but we did not receive this information prior to issuing this report. In its written response, reproduced in appendix VIII, VA provided information about its use of reverse auctions for energy purchases through GSA and its energy reverse auction provider, EnerNOC. The Department of Housing and Urban Development, GSA, and OMB informed us that they had no comments on this report. We are sending copies of this report to the appropriate congressional committees, the Secretary of Defense, the Secretary of Homeland Security, the Secretary of Housing and Urban Development, the Administrator of General Services, the Secretary of the Interior, the Secretary of State, the Secretary of Veterans Affairs, and the Administrator of Federal Procurement Policy. In addition, the report is available at no charge on the GAO website at http://www.gao.gov. If you or your staff have any questions about this report, please contact me at (202) 512-4841 or dinapolit@gao.gov. Contact points for our Offices of Congressional Relations and Public Affairs may be found on the last page of this report. GAO staff who made key contributions to this report are listed in appendix IX. The Defense Logistics Agency’s (DLA) use of reverse auctions declined over 80 percent from fiscal years 2013 to 2017 from about $7 billion to about $1 billion in constant fiscal year 2017 dollars, according to data we obtained from DLA’s provider Procurex for all auctions conducted (that may or may not have resulted in an award). According to DLA officials, the agency’s declining use is largely due to a policy revision that no longer requires, but rather allows contracting officers to consider using reverse auctions for all procurements over $150,000. DLA pays a flat fee to its reverse auction provider for use of the reverse auction platform. This payment mechanism is different from the fee arrangements in contracts between agencies and many other reverse auction providers, for which providers calculate fees on a per-transaction basis. In addition, DLA generally uses a reverse auction as a price negotiation tool among a group of selected vendors that the agency determined to be technically acceptable based on vendors’ initial responses to a solicitation. Because of these differences, DLA does not have a need to track the reverse auctions awarded for its reporting and oversight purposes. The Army Computer Hardware Enterprise Software and Solutions (CHESS) Information Technology (IT) e-mart program introduced its reverse auction capability in January 2016. It offers fee-free reverse auctions for a number of the CHESS contracts. According to Army officials, in July 2017, the CHESS program began recommending use of its reverse auction capability rather than other reverse auction platforms. According to data provided by the CHESS program office for all auctions conducted (that may or may not have resulted in an award), use of reverse auctions increased over 225 percent between fiscal years 2016 and 2017 from about $28 million to about $91 million in constant fiscal year 2017 dollars. The CHESS IT e-mart does not track which auctions result in awards. According to officials, users capture award information in the agency’s contract writing system. While CHESS officials told us they are interested in that kind of information, CHESS does not charge a fee and does not have a need to track the reverse auctions awarded for its oversight purposes. This report examines (1) federal agencies’ use of reverse auctions between 2013 and 2017, (2) the extent to which selected agencies achieved benefits through reverse auctions, and (3) the extent to which selected agencies have insight into reverse auction fees. For all objectives, we reviewed policies and guidance related to reverse auctions from Office of Federal Procurement Policy (OFPP) and at selected agencies and relevant components of those agencies we reviewed, as well as the Standards for Internal Control in the Federal Government and relevant work by agency Inspectors General. We also interviewed procurement policy officials from the selected agencies and representatives from reverse auction providers. To examine federal agencies’ use of reverse auctions between 2013 and 2017, we collected data from reverse auction providers we identified by reviewing our past work in this area, reviewing federal procurement solicitation and award information, conducting interviews with agency officials, and conducting internet searches about federal use of reverse auctions. Through these efforts, we identified eight reverse auction providers that offered reverse auction services either government-wide or to specific agencies (see table 10 below). While it is possible that our efforts did not identify all reverse auction providers that federal agencies use, we are reasonably confident we have included the largest reverse auction providers used by the selected agencies in our review. In addition to the identification efforts described above, for the selected agencies in our review, we asked component officials to identify reverse auction providers with which the agency has a contractual relationship and which reverse auction platforms the agency’s contracting officials use. We also asked numerous individual contracting officers about the various platforms the individual has used. No additional providers or platforms were identified as part of those efforts. We collected fiscal year 2013 through 2017 data on reverse auctions use from these reverse auction providers and analyzed it to identify the number of reverse auctions conducted annually across the government and the dollar value of those reverse auctions. For our analysis of the number and dollar value of the auctions, we analyzed auctions that resulted in a contract award between the agency and a vendor in a particular year, according to provider data. We describe these as awarded reverse auctions. The dollar value of an awarded auction is based on the dollar amount of the bid selected for award; however, the dollar amount of the bid selected for award is not necessarily equivalent to the amount ultimately obligated on the resulting contract. We present the dollar value of agencies’ awarded auctions from 2013 through 2017 in constant fiscal year 2017 dollars using the Congressional Budget Office’s June 2017 Gross Domestic Product price index projection—the most recent projection available at the time of our analysis. We generally collected data from reverse auction providers because information about reverse auction use is not available in the Federal Procurement Data System-Next Generation, a government-wide source of contract data. In addition, the selected agencies we reviewed do not separately track use of reverse auctions. We collected data from the Department of Housing and Urban Development directly because the agency tracks its reverse auction use, including which auctions it awards. Two of the providers we identified, Procurex and the Army CHESS IT e-mart reverse auction platform, do not track the reverse auctions that agencies award to vendors. The agencies using these providers, Defense Logistics Agency and the Department of the Army, do not require this information for their own reporting and oversight purposes or for paying for the reverse auction services. For purposes of this report, all references to reverse auction use exclude auctions conducted with these providers. Therefore, our analysis includes only the value and number of known, awarded auctions between 2013 through 2017. As a result, we underestimate total federal reverse auction use. Using available data for the Department of the Army, we estimate our analysis includes over 95 percent of the value and 99 percent of Army auctions. For the Defense Logistics Agency, Procurex reported that over the five-year period the agency conducted approximately 7,100 auctions valued at about $19 billion. While we cannot say with certainty the number and value of awarded auctions, we can assume the agency awarded fewer auctions than it conducted. Based on information from other providers for which we have data on the number of auctions conducted and awarded, agencies using these providers awarded about 45 percent of the auctions conducted between 2013 and 2017. Of the six providers with awarded auction data, FedBid accounted for almost all auctions and the vast majority of dollars agencies awarded using reverse auctions from 2013 through 2017. We also used this data to identify six of the largest users of reverse auctions for that period—Departments of the Army, Homeland Security (DHS), the Interior, the Navy, State, and Veterans Affairs (VA)—by number of auctions and dollar value. In determining the largest users of reverse auctions, we excluded energy-related auctions from our analysis. Energy-related auctions represented a sizable portion—10 percent—of reverse auction value, but less than 1 percent of auctions. We determined that conducting a detailed review of energy-related auctions was not likely to provide insight for other procurements because the unique characteristics of energy markets make it difficult to compare to reverse auctions for other goods and services that were included in our review. For five of the six selected agencies (Army, Navy, DHS, Interior, and State), we collected additional data on auctions awarded in fiscal year 2016—the most recent year of detailed data available at the time that we began our review. We limited our analysis to auctions for which we identified a start, end, and contract award date in 2016, according to provider data. Our analysis of fiscal year 2016 auctions included almost 15,000 auctions with a total awarded value of approximately $910 million. We excluded reverse auctions for which the data indicated that they were awarded in 2016 but for which the auction dates indicated that the auctions were conducted in a prior year. At least some of these auctions represent options exercised on earlier auctions, rather than new auctions, and we wanted to ensure we could compare auction activity to policies and procedures in place for a specific period. Our analysis of awarded auctions excluded auctions identified as cancelled or with an auction start, end, or award date outside of 2016. The sixth agency (VA) conducted less than a dozen new auctions in 2016, and so we excluded them from our analysis of 2016 data, as well as our analysis of the benefits and fees associated with reverse auctions. We analyzed agencies’ use of reverse auctions, including but not limited to the number and dollar value of the awarded auctions, types of products and services purchased, level of competition achieved (number of participating vendors and bids received), savings from government pre-auction estimates, and fees associated with the auctions. For our analysis of the number and dollar value of the awarded auctions, we included auctions that resulted in a contract award between the agency and a vendor, according to provider data. Actual award obligations may differ. For example, an agency may adjust the procurement (such as increasing or decreasing the number of items purchased) between the auction and the final award, which may not be reflected in the data we used. In addition, the number of awarded auctions may differ. While we took steps to exclude awarded auctions for which agencies had cancelled the resulting contracts, if the provider data did not identify an auction as cancelled we may have included it in our analysis. For the analysis of products and services, we examined auctions conducted and awarded in 2016 by two of the three reverse auction providers, both of which had product and service code data available for awarded reverse auctions. These two providers accounted for almost all contracts awarded via reverse auctions that year. Provider data included an overall product and service code for the auction. The auction may include goods and services outside that particular code. For our purposes, we used the code provided to categorize the auction as a product or service and the type of purchase. The third provider, GSA Reverse Auction, does not capture similar product and service code data. Using other data GSA Reverse Auction provided, we were able to estimate that about 20 percent of dollars awarded using GSA’s Reverse Auctions platform included information technology products and services. For our analysis of contract vehicles, we used provider data on whether the buyer selected to conduct the auction on the open marketplace or limit the auction to vendors qualified to bid on existing contract vehicles. For example, buyers may have conducted auctions on the open market, which is available to any vendor selling the good or service that is registered to bid via the reverse auction provider or conducted auctions that were limited to vendors with specific agency or government-wide contracts. For our analysis of competition, we included all vendors and associated bids submitted in provider data. During our interviews with contracting officials, we learned that in some auctions officials determined particular vendors were not technically acceptable following an auction. This information is not available in provider data and, as a result, our analysis includes vendors that contracting officials determined were not technically acceptable. We also obtained contract-related information from the Federal Procurement Data System-Next Generation for awarded auctions with available contract or order numbers to identify if agencies used commercial acquisition procedures and firm-fixed-price contracts in accordance with the effective practices outlined in the June 2015 OFPP memorandum. Government auditing standards require that we assess the reliability of data we use in our products. As part of our assessment, we reviewed the reverse auction data collected for obvious issues, such as missing data elements, duplicates, and outliers. We also tested the relationships between variables. In addition, we interviewed agency and reverse auction provider officials to understand the data and collected information on the systems used to collect and store the data, as well as how those data are used. Further, we compared the data for a non-generalizable sample of 40 auctions to contract files. We assessed the reliability of the data used in this report and determined they were sufficiently reliable for describing the known number and value of awarded reverse auctions by federal agencies from 2013 through 2017 and identifying salient characteristics of selected agencies’ awarded auctions in 2016, including the number of participating vendors and bids, type of good or service purchased, and indirect fees associated with the auction. To identify the extent to which selected agencies achieved the benefits of reverse auctions, we analyzed the 2016 data we collected on reverse auction use at our five selected agencies to identify factors related to competition (e.g., the number of participating vendors in auctions and the number of bids received, and the frequency of iterative bidding, defined as when there are multiple bidders and at least one bidder submits more than one bid during the auction) and savings (e.g., savings as calculated by the reverse auction providers). This analysis excludes auctions conducted using the Army CHESS IT e-mart because it does not track which auctions result in awards. However, the analysis still includes at least 93 percent of reverse auction award value and 98 percent of the awarded auctions in 2016. To obtain a more in-depth understanding of the benefits achieved by selected agencies, we selected and reviewed a nongeneralizable selection of 40 contracts awarded from 2016 reverse auctions across the five agencies. These contracts were chosen to obtain variety across the following characteristics: buying agency and component; contract vehicle (open market or orders on existing contracts such as Federal Supply Schedules or agency indefinite-delivery / indefinite-quantity contracts); dollar value; fees charged by the reverse auction providers; and goods and services being purchased (see table 11). At DHS, we selected case studies from two components, Customs and Border Protection and Immigration and Customs Enforcement. Customs and Border Protection had an active contract with FedBid in 2016 and Immigration and Customs Enforcement did not, so we selected these two components in order to understand the difference in how components with and without an active contract used FedBid. For each of the selected case studies, we reviewed contract documentation related to the reverse auction, such documentation of market research, pre-auction cost estimates (e.g. independent cost estimates), price negotiation memoranda, and contract award documents. In addition, to obtain contracting officials’ perspectives on the benefits of reverse auctions, we interviewed the contracting officials involved with 35 of these 40 auctions: for the remaining 5, knowledgeable officials were not available to interview. We conducted our interviews using a semi- structured interview process in which we asked contracting officials a standard set of questions about their experiences conducting reverse auctions. We did not compare reverse auctions to alternative acquisition methods to compare the relative costs and benefits. To identify the extent to which selected agencies had insight into reverse auction fees, we analyzed provider data on fees paid indirectly to FedBid and GSA Reverse Auctions in 2016 for the five agencies selected for our review. Fees paid to these two reverse auction providers were paid indirectly by the agencies through the winning vendor. Our analysis included the total amount of fees paid by each agency in 2016 to each reverse auction provider and the amount of fees paid by each agency in 2016 for auctions with only one bidder. We also analyzed agency guidance to determine the extent of information provided to contracting officials on reverse auction fees. Specifically, we assessed whether agency guidance identified roles and responsibilities of contracting officials in understanding and assessing reverse auction fees and provided sufficient information to help ensure contracting officers understood how reverse auction fees are applied. Further, we interviewed contracting officials for 35 of our 40 selected auctions to develop an understanding of the officials’ knowledge of the fees related to the auctions they conducted. As noted above, officials for the other 5 auctions were not available to interview. The 40 selected auctions included 33 that incurred an indirect fee, 2 for which the provider waived the fee, and 5 for which no fee applied. We interviewed the contracting officials involved with 30 of the auctions that incurred a fee and 5 of the auctions for which the fee was waived or no fee applied. To determine whether contracting officials we interviewed had a complete and accurate understanding of reverse auction fee structures, we analyzed their responses to questions about reverse auction fee structures and the fee paid for the reverse auction we reviewed in detail, and compared their responses to fee structures documented in agency contracts and reverse auction provider terms and conditions. Lastly, to determine whether agencies had sufficient insight into reverse auction fees to conduct appropriate oversight, we analyzed contracts between the selected agencies and FedBid as well as other fee arrangements, including provider terms of service and GSA’s Federal Supply Schedule contract with FedBid. Our analysis included both contracts that were in place in fiscal year 2016 in order to understand the terms and conditions that covered the reverse auctions we reviewed in detail, as well as contracts agencies awarded subsequent to fiscal year 2016 so that we could understand whether and how agencies fee arrangements with reverse auction providers had changed. We analyzed the contracts and other fee arrangements to determine the extent to which they explained details of how the fees were applied, such as what fee percentage would be charged, how the fees would apply to contract option years, and how fee caps were applied. We also used a variety of investigative tools and techniques to determine if reverse auction procurement officials and commercial and government providers have engaged in potential fraud, waste, abuse, and mismanagement associated with reverse auction use. We reviewed fraud alerts to learn about potential complaints, coordinated with agency inspector general offices regarding work related to reverse auctions, inquired about contracting officials’ awareness of fraud incidents among the 35 case studies for which we interviewed contracting officials, and conducted a limited review for obvious financial relationships among agency officials responsible for drafting reverse auction policy and commercial reverse auction providers. While steps we took did not uncover any obvious fraud, waste, abuse, or systemic mismanagement, we cannot definitively state that there is no fraud, waste, abuse, or mismanagement in federal use of reverse auctions. We conducted this performance audit from January 2017 to July 2018 in accordance with generally accepted government auditing standards. Those standards require that we plan and perform the audit to obtain sufficient, appropriate evidence to provide a reasonable basis for our findings and conclusions based on our audit objectives. We believe that the evidence obtained provides a reasonable basis for our findings and conclusions based on our audit objectives. We conducted our related investigative work from April 2017 to March 2018 in accordance with investigative standards prescribed by the Council of the Inspectors General on Integrity and Efficiency. In addition to the contact named above, Janet McKelvey (Assistant Director), Luqman Abdullah, Cory Ahonen, Peter Anderson, Leslie Ashton, Matthew Crosby, Alexandra Dew Silva, Lorraine Ettaro, April H. Gamble, Anne McDonough, Miranda Riemer, Robin Wilson, and Helina Wong made key contributions to this report.

Summary: Reverse auctions are intended to result in enhanced competition, lower prices, and reduced acquisition costs. GAO has previously found that agencies did not maximize these benefits. GAO was asked to review federal agencies' use of reverse auctions. This report examines (1) the use of reverse auctions and the extent to which selected agencies achieved benefits, such as competition; and (2) the extent to which selected agencies had insight into reverse auction fees. GAO collected and analyzed data on federal agencies' use of reverse auctions from fiscal years 2013 to 2017. For five of the largest users of reverse auctions—the Departments of the Army, Homeland Security, Interior, Navy, and State—GAO reviewed documentation for 40 auctions that resulted in contract awards in fiscal year 2016 (the most recent data available when the review began), and that were selected to obtain a mix of dollar values and levels of competition, among other factors. GAO also interviewed contracting officials and analyzed agency guidance. Federal agencies' use of reverse auctions—a process where vendors bid against each other with lower prices to win government contracts—declined between fiscal years 2013 and 2017, from about 34,000 to 19,000 auctions valued at about $1.9 billion and $1.5 billion, respectively. In fiscal year 2016, the year GAO studied in detail, nearly three-quarters of auctions at the agencies GAO reviewed resulted in iterative bidding—when there are multiple bidders and at least one bidder submits more than one bid during the auction (see figure). Contracting officers said reverse auctions reduce administrative burden, especially during peak contracting times. Reverse auctions data indicate that selected agencies may have saved more than $100 million in 2016. The five agencies GAO reviewed indirectly paid about $13 million in fees to reverse auction providers through awardees in 2016. However, 28 of the 30 contracting officials GAO interviewed did not fully understand how fees were set. Further, in 2016, agencies GAO reviewed indirectly paid approximately $3 million in fees for reverse auctions for which a fee-free alternative was likely available. None of the guidance GAO reviewed provided sufficient information for contracting officers to assess the appropriateness of these fees (see table). Without better information, contracting officials may be offsetting potential savings by paying more in fees than necessary for the level of services required. GAO is making a total of 21 recommendations to the five agencies in GAO's review, including that agencies inform contracting officials about fees to better compare available provider options. Defense, State, and Interior concurred with this recommendation. DHS did not, stating that contracting officials should obtain this knowledge during market research. GAO believes managing this information centrally could eliminate confusion and minimize duplicate efforts.