How do HSR Second Request response coordination calls generate billing gaps for antitrust attorneys?

Hart-Scott-Rodino Act (HSR Act, 15 U.S.C. § 18a) Second Requests — the DOJ Antitrust Division or FTC Bureau of Competition's request for additional documents and information after the initial HSR filing in a merger review — generate billing gaps because the agency's document specification calls, privilege clarification calls, and certification negotiation calls arrive on the reviewing agency's internal investigation schedule, not on the antitrust attorney's billing calendar. HSR Second Request coordination call types: (1) Second Request document specification and search protocol negotiation call (30–50 min) — when the DOJ or FTC issues a Second Request, agency staff call the antitrust attorney to discuss the document specification scope, the appropriate custodian population, the search term methodology, and potential narrowing agreements to reduce the production burden; these calls arrive when the reviewing agency staff completes its internal review planning on the agency's investigation schedule; (2) privilege log format and categorical privilege assertion call (25–45 min) — Second Request privilege logs in major merger reviews may cover thousands of documents; DOJ or FTC staff attorneys call to discuss the privilege log format, the categories of documents for which categorical privilege assertions will be accepted, and the sampling methodology for privilege verification; these calls arrive when the agency's privilege review team is ready to discuss the assertion approach on the agency's processing schedule; (3) document certification and substantial compliance call (30–45 min) — under 16 C.F.R. § 803.20, the filing party must certify that the Second Request response is substantially compliant before the HSR waiting period restarts; DOJ or FTC staff call to confirm the scope of remaining production and negotiate what constitutes substantial compliance; these calls arrive when the agency team completes the initial production review on the agency's review schedule; (4) behavioral remedy and consent decree negotiation call (35–55 min) — when the agency identifies competitive concerns and proposes to resolve them through behavioral remedies or structural divestitures rather than litigation, counsel for the merging parties receive calls from DOJ or FTC staff to discuss remedy scope; these calls arrive on the agency's remedy review calendar. At 55% untracked: 3 merger matters × 10 calls × 40 min × 55% = 11.0 hours = $4,400–$7,700/year at $400–$700/hr. HSR Second Request gap: $4,400–$7,700/year.

How do state AG multistate antitrust investigation calls generate billing gaps in antitrust practice?

State attorney general antitrust enforcement — multistate investigations by state AG coalitions under each state's antitrust statute and the federal Sherman Act (15 U.S.C. §§ 1–7), state antitrust civil enforcement parallel to DOJ and FTC investigations, and parens patriae suits under 15 U.S.C. § 15c on behalf of state residents — generates billing gaps because the state AG's civil investigative demand or subpoena response coordination and the multistate coalition's investigation conference calls arrive on each state AG's enforcement calendar, not on the antitrust attorney's billing schedule. State AG investigation call types: (1) multistate coalition investigation coordination call (30–45 min) — when a coalition of 10–30 state AGs coordinates a multistate investigation, a lead state AG's staff calls the antitrust attorney to discuss the coordinated document request scope, the production schedule, and whether the client will accept service of a multistate document request; these calls arrive when the multistate coalition completes its coordination on the coalition's investigation planning schedule; (2) state civil investigative demand response and scope narrowing call (20–35 min) — individual state AGs may issue CIDs or subpoenas separately from the multistate coalition; each state's staff attorney calls to discuss production scope, document format, and the state's investigation focus; these calls arrive when each state's review process generates a follow-up request on that state's enforcement calendar; (3) state parens patriae remedy and disgorgement discussion call (25–40 min) — when a state AG pursues a parens patriae claim for damages on behalf of consumers injured by a price-fixing or market allocation conspiracy, the AG staff calls to discuss the damages methodology, disgorgement scope, and the cy pres allocation of any unclaimed consumer damages fund; these calls arrive on the AG's remedy negotiation schedule; (4) pre-litigation resolution and assurance of voluntary compliance advisory call (20–35 min) — when a state AG's investigation is nearing conclusion and the state is considering resolution through an Assurance of Voluntary Compliance rather than litigation, the antitrust attorney advises the client and calls the AG staff to discuss the AVC terms; these calls arrive on the AG's enforcement resolution timeline. At 55% untracked: 8 advisory clients × 4 calls × 30 min × 55% = 8.8 hours = $3,520–$6,160/year. State AG investigation gap: $3,520–$6,160/year.

Vertical guide · Updated June 2026

Antitrust attorney time tracking: HSR Second Request calls, DOJ Civil Investigative Demand response, and state AG multistate investigation coordination

Q: How does antitrust compliance advisory work generate billing gaps different from litigation-driven gaps?

Antitrust compliance advisory work — reviewing distributor agreements and pricing policies for Robinson-Patman Act compliance (15 U.S.C. § 13), advising on competitor information-sharing protocols under Sherman Act Section 1 (15 U.S.C. § 1), evaluating joint venture structures for rule-of-reason compliance, and advising on no-poach and non-solicitation agreement enforceability after DOJ's per se no-poach position — generates advisory billing gaps distinct from the litigation-driven HSR and CID gaps. Compliance advisory call types: (1) deal pricing review and MFN clause advisory call (20–35 min) — when the client's pricing team is reviewing a proposed most-favored-nation clause or a minimum resale price maintenance policy, the pricing manager calls the antitrust attorney for an informal advisory on whether the arrangement is per se or rule-of-reason analysis territory; these calls arrive when the pricing team reaches a decision point on the pricing team's product launch or contract renegotiation schedule; (2) no-poach and non-solicitation agreement enforceability advisory call (20–30 min) — after DOJ's 2016 guidance on per se treatment of naked no-poach agreements between competing employers and subsequent enforcement actions (e.g., United States v. Jindal, United States v. DaVita), clients call for advisory on whether their non-solicitation provisions are collateral to a legitimate business transaction or naked no-poach agreements subject to per se condemnation; (3) trade association participation and competitor information exchange advisory call (20–35 min) — when the client participates in a trade association that collects and circulates member pricing or capacity data, the client's government affairs or compliance team calls before submitting data; these calls arrive on the trade association's data collection schedule.

Antitrust practice — HSR merger clearance and Second Request compliance, DOJ Antitrust Division civil and criminal investigation defense, FTC Bureau of Competition merger and conduct investigation response, multistate attorney general coalition investigation coordination, and antitrust compliance counseling on pricing and distribution arrangements — generates three billing-gap sources driven by the DOJ/FTC merger review timeline, the Antitrust Division's investigation calendar, and each state AG's enforcement schedule: HSR Second Request response coordination calls on the reviewing agency's schedule (3 merger matters × 10 calls × 40 min × 55% untracked = 11.0 hours = $4,400–$7,700/year at $400–$700/hr), DOJ Civil Investigative Demand response and advisory calls (5 matters × 8 calls × 35 min × 55% = 12.8 hours = $5,133–$8,982/year), and state AG multistate investigation coordination calls (8 clients × 4 calls × 30 min × 55% = 8.8 hours = $3,520–$6,160/year). For a solo antitrust attorney, the annual billing gap is $15,000–$28,000.

TL;DR

ClaimHour captures every DOJ staff attorney document clarification call during the HSR Second Request review on the agency's investigation schedule, every DOJ Antitrust Division investigative follow-up call during the 12–36-month CID investigation window, and every multistate AG coalition coordination call when the lead state AG's staff drives the timing — passively, no timer, no audio, no call contents. $29–$59/mo. No PMS required.

HSR Second Request: calls on the DOJ/FTC review timeline

Hart-Scott-Rodino Act merger review is one of the most intensive billing-gap environments in all of antitrust practice. Second Request compliance involves coordinating the production of potentially millions of documents from multiple custodians, negotiating the document specification scope and search methodology with agency staff, and managing the production certification process — but every call from DOJ or FTC staff arrives on the agency's review schedule, which is driven by the agency's internal staffing, the reviewing team's document processing capacity, and the agency's broader merger review portfolio.

HSR Second Request call types: (1) document specification and search protocol negotiation call (30–50 min) — agency staff call to discuss the document specification scope, appropriate custodian populations, search term methodology, and potential narrowing agreements to reduce production burden while covering the agency's investigative objectives; these calls arrive when agency staff completes initial review planning on the agency's investigation schedule; (2) privilege log format and categorical privilege assertion call (25–45 min) — agency staff call to discuss privilege log format requirements, acceptable categorical privilege assertions for large volumes of attorney-client communications, and sampling methodology for privilege verification in privilege logs covering thousands of entries; (3) document certification and substantial compliance negotiation call (30–45 min) — agency staff calls to confirm the scope of remaining production obligations and negotiate substantial compliance certification terms under 16 C.F.R. § 803.20 before the HSR waiting period restarts; (4) behavioral remedy and consent decree term negotiation call (35–55 min) — when the agency identifies competitive concerns addressable through behavioral or structural remedies, agency staff calls to discuss remedy scope, divestiture package design, and conduct obligation monitoring mechanisms. At 55% untracked: 3 merger matters × 10 calls × 40 min × 55% = 11.0 hours = $4,400–$7,700/year. HSR Second Request gap: $4,400–$7,700/year.

The HSR Second Request gap is highest per-matter but lowest in frequency for a solo antitrust practice; the DOJ CID investigation gap and state AG investigation gap generate smaller per-matter call volumes but across more matters simultaneously, producing a higher aggregate annual gap than the Second Request gap in most solo antitrust practices.

DOJ Civil Investigative Demand: calls during the 12–36-month investigation window

DOJ Antitrust Division CID investigations are long-cycle matters — the period from initial CID service to charging decision or declination typically runs 12–36 months — and during this entire period, the client's executives generate advisory calls that arrive on the client's anxiety-driven calendar rather than on any planned billing event. The pattern is structurally identical to the administrative exhaustion gap in ERISA practice and the pre-claim advisory gap in government contracts practice: long investigation cycles with no docket events produce call volume that resists contemporaneous capture.

CID response coordination call types: (1) CID receipt and document scope scoping call (30–45 min) — when the CID is served, the antitrust attorney calls the client's in-house legal and compliance team to evaluate the document categories, identify potentially privileged materials, and scope the collection and production; follow-up calls arrive when the client's IT team completes the collection on the client's IT schedule; (2) DOJ staff attorney document clarification and scope narrowing call (25–40 min) — during the production period, DOJ staff attorneys call to clarify document categories, discuss production format, and potentially narrow the specification if the initial production reveals the investigation's focus; these calls arrive when DOJ staff completes its review on the agency's timeline; (3) investigative interview scheduling and witness preparation call (25–40 min) — when the DOJ schedules investigative interviews of executives or employees, the antitrust attorney prepares the witness; preparation calls arrive when the DOJ's interview scheduling notice arrives on the DOJ's investigation calendar; (4) investigation status and cooperation credit advisory call (20–35 min) — throughout the investigation, the client's CEO or general counsel calls for investigation status updates and to discuss cooperation credit and the value of proactive disclosure; these calls arrive on the client's internal reporting schedule. At 55% untracked: 5 matters × 8 calls × 35 min × 55% = 12.8 hours = $5,133–$8,982/year. DOJ CID gap: $5,133–$8,982/year.

State AG multistate investigation: calls on each state's enforcement calendar

State attorney general antitrust enforcement has expanded significantly following the DOJ and FTC's increasing focus on Big Tech and pharmaceutical mergers: multistate coalitions of 10–30 state AGs now routinely conduct parallel investigations of major mergers and conduct cases alongside the federal agencies. For clients subject to state AG investigation, the antitrust attorney receives coordination calls from the coalition's lead state AG office and from individual state AG offices that issued separate state CIDs or subpoenas — all arriving on different states' enforcement calendars in overlapping patterns throughout the investigation period.

State AG investigation call types: (1) multistate coalition investigation coordination call (30–45 min) — when a multistate coalition AG staff calls to discuss the coordinated document request scope, production schedule, and voluntary response terms, these calls arrive on the coalition's coordination schedule and can come from multiple participating states' staff in overlapping windows; (2) individual state civil investigative demand scope narrowing call (20–35 min) — when individual state AGs issue separate state CIDs, each state's staff attorney calls on that state's enforcement calendar; multistate matters with 5–10 participating states generate 5–10 parallel call timelines; (3) parens patriae remedy and consumer disgorgement call (25–40 min) — state AG staff calls to discuss disgorgement amounts, consumer damage fund structure, and cy pres distribution for unclaimed consumer funds; these calls arrive on the AG's remedy negotiation schedule near investigation conclusion; (4) Assurance of Voluntary Compliance advisory call (20–35 min) — state AG staff calls to discuss AVC terms as an alternative to litigation; these calls arrive when the state AG signals resolution interest on the AG's enforcement timeline. At 55% untracked: 8 advisory clients × 4 calls × 30 min × 55% = 8.8 hours = $3,520–$6,160/year. State AG investigation gap: $3,520–$6,160/year.

How ClaimHour fits antitrust practice

If you advise clients on HSR merger clearance, respond to DOJ Antitrust Division CIDs, and manage multistate AG investigation coordination — and your invoices consistently understate the agency staff calls during the Second Request document review window, the client executive advisory calls during the 12–36-month CID investigation period, and the coalition AG coordination calls from multiple states' enforcement calendars on overlapping timelines — ClaimHour was built for that gap. The passive capture logs every call (iOS call metadata: duration, timestamp, direction — not content), every email advisory session, and every document review session. A 2-minute evening digest surfaces each unmatched call for matter attribution. No audio. No call contents. No email bodies. Privilege is preserved under ABA Formal Opinion 512. Join the waitlist and we'll email when early access opens.

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