diff --git a/app/jobs/get_usps_proofing_results_job.rb b/app/jobs/get_usps_proofing_results_job.rb
index 521a6e7ba4f..c0da8c79f14 100644
--- a/app/jobs/get_usps_proofing_results_job.rb
+++ b/app/jobs/get_usps_proofing_results_job.rb
@@ -28,18 +28,19 @@ def perform(_now)
 
     reprocess_delay_minutes = IdentityConfig.store.
       get_usps_proofing_results_job_reprocess_delay_minutes
-    enrollments = InPersonEnrollment.needs_usps_status_check(
+    pending_enrollments = InPersonEnrollment.needs_usps_status_check(
       ...reprocess_delay_minutes.minutes.ago,
     )
 
     started_at = Time.zone.now
+    pending_enrollments.update(last_batch_claimed_at: started_at)
+    enrollments_to_check = InPersonEnrollment.needs_usps_status_check_batch(started_at)
     analytics.idv_in_person_usps_proofing_results_job_started(
-      enrollments_count: enrollments.count,
+      enrollments_count: enrollments_to_check.count,
       reprocess_delay_minutes: reprocess_delay_minutes,
       job_name: self.class.name,
     )
-
-    check_enrollments(enrollments)
+    check_enrollments(enrollments_to_check)
 
     analytics.idv_in_person_usps_proofing_results_job_completed(
       **enrollment_outcomes,
diff --git a/app/models/in_person_enrollment.rb b/app/models/in_person_enrollment.rb
index 93e5430ad25..dc9c2400dea 100644
--- a/app/models/in_person_enrollment.rb
+++ b/app/models/in_person_enrollment.rb
@@ -60,8 +60,15 @@ def self.needs_late_email_reminder(early_benchmark, late_benchmark)
   def self.needs_usps_status_check(check_interval)
     where(status: :pending).
       and(
-        where(status_check_attempted_at: check_interval).
-        or(where(status_check_attempted_at: nil)),
+        where(last_batch_claimed_at: check_interval).
+        or(where(last_batch_claimed_at: nil)),
+      )
+  end
+
+  def self.needs_usps_status_check_batch(batch_at)
+    where(status: :pending).
+      and(
+        where(last_batch_claimed_at: batch_at),
       ).
       order(status_check_attempted_at: :asc)
   end
@@ -69,8 +76,8 @@ def self.needs_usps_status_check(check_interval)
   # Does this enrollment need a status check via the USPS API?
   def needs_usps_status_check?(check_interval)
     pending? && (
-      status_check_attempted_at.nil? ||
-      check_interval.cover?(status_check_attempted_at)
+      last_batch_claimed_at.nil? ||
+      check_interval.cover?(last_batch_claimed_at)
     )
   end
 
diff --git a/db/primary_migrate/20230814130423_add_last_batch_claimed_at_to_in_person_enrollment.rb b/db/primary_migrate/20230814130423_add_last_batch_claimed_at_to_in_person_enrollment.rb
new file mode 100644
index 00000000000..0a18b9e298e
--- /dev/null
+++ b/db/primary_migrate/20230814130423_add_last_batch_claimed_at_to_in_person_enrollment.rb
@@ -0,0 +1,6 @@
+class AddLastBatchClaimedAtToInPersonEnrollment < ActiveRecord::Migration[7.0]
+  def change
+    add_column :in_person_enrollments, :last_batch_claimed_at, :datetime
+    InPersonEnrollment.update_all("last_batch_claimed_at = status_check_attempted_at")
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 904574f2213..7dd15040377 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_08_03_143215) do
+ActiveRecord::Schema[7.0].define(version: 2023_08_14_130423) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_stat_statements"
   enable_extension "pgcrypto"
@@ -311,6 +311,7 @@
     t.datetime "status_check_completed_at", comment: "The last time a status check was successfully completed"
     t.boolean "ready_for_status_check", default: false
     t.datetime "notification_sent_at", comment: "The time a notification was sent"
+    t.datetime "last_batch_claimed_at"
     t.index ["profile_id"], name: "index_in_person_enrollments_on_profile_id"
     t.index ["ready_for_status_check"], name: "index_in_person_enrollments_on_ready_for_status_check", where: "(ready_for_status_check = true)"
     t.index ["status_check_attempted_at"], name: "index_in_person_enrollments_on_status_check_attempted_at", where: "(status = 1)"
diff --git a/spec/jobs/get_usps_proofing_results_job_spec.rb b/spec/jobs/get_usps_proofing_results_job_spec.rb
index 628f3d740af..0a8df4ac944 100644
--- a/spec/jobs/get_usps_proofing_results_job_spec.rb
+++ b/spec/jobs/get_usps_proofing_results_job_spec.rb
@@ -149,7 +149,8 @@
 
 RSpec.shared_examples 'enrollment_encountering_an_error_that_has_a_nil_response' do |error_type:|
   it 'logs that response is not present' do
-    expect(NewRelic::Agent).to receive(:notice_error).with(instance_of(error_type))
+    expect(NewRelic::Agent).to receive(:notice_error).
+      with(instance_of(error_type)).at_least(1).times
     job.perform(Time.zone.now)
 
     expect(job_analytics).to have_logged_event(
@@ -217,35 +218,22 @@
     describe 'IPP enabled' do
       describe 'DAV not enabled' do
         let!(:pending_enrollments) do
-          [
+          ['BALTIMORE', 'FRIENDSHIP', 'WASHINGTON', 'ARLINGTON', 'DEANWOOD'].map do |name|
             create(
-              :in_person_enrollment, :pending,
-              selected_location_details: { name: 'BALTIMORE' },
-              issuer: 'http://localhost:3000'
-            ),
-            create(
-              :in_person_enrollment, :pending,
-              selected_location_details: { name: 'FRIENDSHIP' }
-            ),
-            create(
-              :in_person_enrollment, :pending,
-              selected_location_details: { name: 'WASHINGTON' }
-            ),
-            create(
-              :in_person_enrollment, :pending,
-              selected_location_details: { name: 'ARLINGTON' }
-            ),
-            create(
-              :in_person_enrollment, :pending,
-              selected_location_details: { name: 'DEANWOOD' }
-            ),
-          ]
+              :in_person_enrollment,
+              :pending,
+              :with_notification_phone_configuration,
+              issuer: 'http://localhost:3000',
+              selected_location_details: { name: name },
+            )
+          end
         end
-        let(:pending_enrollment) { pending_enrollments[0] }
+        let(:pending_enrollment) { pending_enrollments.first }
 
         before do
+          enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return([pending_enrollment])
+            and_return(enrollment_records)
           allow(IdentityConfig.store).to receive(:in_person_proofing_enabled).and_return(true)
         end
 
@@ -263,8 +251,9 @@
         end
 
         it 'records the last attempted status check regardless of response code and contents' do
+          enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return(pending_enrollments)
+            and_return(enrollment_records)
           stub_request_proofing_results_with_responses(
             request_failed_proofing_results_args,
             request_in_progress_proofing_results_args,
@@ -308,8 +297,9 @@
         end
 
         it 'logs a message when the job starts' do
+          enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return(pending_enrollments)
+            and_return(enrollment_records)
           stub_request_proofing_results_with_responses(
             request_failed_proofing_results_args,
             request_in_progress_proofing_results_args,
@@ -328,8 +318,9 @@
         end
 
         it 'logs a message with counts of various outcomes when the job completes (errored > 0)' do
+          enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return(pending_enrollments)
+            and_return(enrollment_records)
           stub_request_proofing_results_with_responses(
             request_passed_proofing_results_args,
             request_in_progress_proofing_results_args,
@@ -337,7 +328,6 @@
             request_failed_proofing_results_args,
             request_expired_proofing_results_args,
           )
-
           job.perform(Time.zone.now)
 
           expect(job_analytics).to have_logged_event(
@@ -360,8 +350,9 @@
         end
 
         it 'logs a message with counts of various outcomes when the job completes (errored = 0)' do
+          enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return(pending_enrollments)
+            and_return(enrollment_records)
           stub_request_proofing_results_with_responses(
             request_passed_proofing_results_args,
           )
@@ -390,7 +381,7 @@
         it 'logs a message with counts of various outcomes when the job completes
         (no enrollments)' do
           allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return([])
+            and_return(InPersonEnrollment.none)
           stub_request_proofing_results_with_responses(
             request_passed_proofing_results_args,
           )
@@ -424,7 +415,7 @@
           it 'logs failure details' do
             allow(UspsInPersonProofing::Proofer).to receive(:new).and_return(proofer)
             allow(proofer).to receive(:request_proofing_results).and_raise(error)
-            expect(NewRelic::Agent).to receive(:notice_error).with(error)
+            expect(NewRelic::Agent).to receive(:notice_error).with(error).at_least(1).times
 
             job.perform(Time.zone.now)
 
@@ -444,8 +435,9 @@
           let(:request_delay_ms) { 750 }
 
           it 'adds a delay between requests to USPS' do
+            enrollment_records = InPersonEnrollment.where(id: pending_enrollments.map(&:id))
             allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-              and_return(pending_enrollments)
+              and_return(enrollment_records)
             stub_request_passed_proofing_results
             expect(job).to receive(:sleep).exactly(pending_enrollments.length - 1).times.
               with(0.75)
@@ -458,10 +450,10 @@
           it 'generates a backwards-compatible unique ID' do
             pending_enrollment.update(unique_id: nil)
             stub_request_passed_proofing_results
-            expect(pending_enrollment).to receive(:usps_unique_id).and_call_original
+            expect_any_instance_of(InPersonEnrollment).to receive(:usps_unique_id).and_call_original
 
             job.perform(Time.zone.now)
-
+            pending_enrollment.reload
             expect(pending_enrollment.unique_id).not_to be_nil
           end
         end
@@ -642,9 +634,11 @@
               expected_wait_until = 1.hour.from_now
               expect do
                 job.perform(Time.zone.now)
+                pending_enrollment.reload
               end.to have_enqueued_job(InPerson::SendProofingNotificationJob).
                 with(pending_enrollment.id).at(expected_wait_until).on_queue(:intentionally_delayed)
             end
+
             expect(pending_enrollment.proofed_at).to eq(transaction_end_date_time)
             expect(job_analytics).to have_logged_event(
               'GetUspsProofingResultsJob: Enrollment status updated',
@@ -687,6 +681,7 @@
               job.perform(Time.zone.now)
             end
 
+            pending_enrollment.reload
             expect(pending_enrollment.proofed_at).to eq(transaction_end_date_time)
             expect(job_analytics).to have_logged_event(
               'GetUspsProofingResultsJob: Enrollment status updated',
@@ -729,6 +724,7 @@
               job.perform(Time.zone.now)
             end
 
+            pending_enrollment.reload
             expect(pending_enrollment.proofed_at).to eq(transaction_end_date_time)
             expect(job_analytics).to have_logged_event(
               'GetUspsProofingResultsJob: Enrollment status updated',
@@ -772,6 +768,7 @@
               job.perform Time.zone.now
             end
 
+            pending_enrollment.reload
             expect(pending_enrollment.proofed_at).to eq(transaction_end_date_time)
             expect(job_analytics).to have_logged_event(
               'GetUspsProofingResultsJob: Enrollment status updated',
@@ -889,8 +886,10 @@
           context 'when an enrollment code is invalid' do
             # this enrollment code is hardcoded into the fixture
             # request_unexpected_invalid_enrollment_code_response.json
-            let(:pending_enrollment) do
-              create(:in_person_enrollment, :pending, enrollment_code: '1234567890123456')
+            let(:pending_enrollments) do
+              [
+                create(:in_person_enrollment, :pending, enrollment_code: '1234567890123456'),
+              ]
             end
             before(:each) do
               stub_request_unexpected_invalid_enrollment_code
@@ -914,8 +913,10 @@
           context 'when a unique id is invalid' do
             # this unique id is hardcoded into the fixture
             # request_unexpected_invalid_applicant_response.json
-            let(:pending_enrollment) do
-              create(:in_person_enrollment, :pending, unique_id: '123456789abcdefghi')
+            let(:pending_enrollments) do
+              [
+                create(:in_person_enrollment, :pending, unique_id: '123456789abcdefghi'),
+              ]
             end
             before(:each) do
               stub_request_unexpected_invalid_applicant
@@ -1005,7 +1006,7 @@
 
           it 'logs the error to NewRelic' do
             expect(NewRelic::Agent).to receive(:notice_error).
-              with(instance_of(Faraday::BadRequestError))
+              with(instance_of(Faraday::BadRequestError)).at_least(1).times
             job.perform(Time.zone.now)
           end
         end
@@ -1031,7 +1032,7 @@
 
           it 'logs the error to NewRelic' do
             expect(NewRelic::Agent).to receive(:notice_error).
-              with(instance_of(Faraday::ClientError))
+              with(instance_of(Faraday::ClientError)).at_least(1).times
             job.perform(Time.zone.now)
           end
         end
@@ -1051,7 +1052,7 @@
 
           it 'logs the error to NewRelic' do
             expect(NewRelic::Agent).to receive(:notice_error).
-              with(instance_of(Faraday::ServerError))
+              with(instance_of(Faraday::ServerError)).at_least(1).times
             job.perform(Time.zone.now)
           end
         end
@@ -1127,8 +1128,6 @@
           )
         end
         before do
-          allow(InPersonEnrollment).to receive(:needs_usps_status_check).
-            and_return([pending_enrollment])
           allow(IdentityConfig.store).to receive(:in_person_proofing_enabled).and_return(true)
         end
 
@@ -1152,6 +1151,7 @@
             freeze_time do
               expect do
                 job.perform Time.zone.now
+                pending_enrollment.reload
               end.to have_enqueued_job(InPerson::SendProofingNotificationJob).
                 with(pending_enrollment.id).at(1.hour.from_now).on_queue(:intentionally_delayed)
             end
diff --git a/spec/models/in_person_enrollment_spec.rb b/spec/models/in_person_enrollment_spec.rb
index 99758257f47..372604202c0 100644
--- a/spec/models/in_person_enrollment_spec.rb
+++ b/spec/models/in_person_enrollment_spec.rb
@@ -148,7 +148,7 @@
     let!(:failing_enrollment) { create(:in_person_enrollment, :failed) }
     let!(:expired_enrollment) { create(:in_person_enrollment, :expired) }
     let!(:checked_pending_enrollment) do
-      create(:in_person_enrollment, :pending, status_check_attempted_at: Time.zone.now)
+      create(:in_person_enrollment, :pending, last_batch_claimed_at: Time.zone.now)
     end
     let!(:needy_enrollments) do
       [
@@ -193,7 +193,7 @@
     end
     let!(:checked_pending_enrollment) do
       create(
-        :in_person_enrollment, :pending, status_check_attempted_at: Time.zone.now,
+        :in_person_enrollment, :pending, last_batch_claimed_at: Time.zone.now,
                                          ready_for_status_check: true
       )
     end