diff --git a/marc_to_solr/lib/electronic_portfolio_builder.rb b/marc_to_solr/lib/electronic_portfolio_builder.rb
index e151c5ab9..0076b8abe 100644
--- a/marc_to_solr/lib/electronic_portfolio_builder.rb
+++ b/marc_to_solr/lib/electronic_portfolio_builder.rb
@@ -4,23 +4,18 @@
 class ElectronicPortfolioBuilder
   # Build electronic portfolio JSON from marc fields
   # @param field [MARC::DataField] data from 951 field
-  # @param date [MARC::DataField] date range data from 953 field
-  # @param embargo [MARC::DataField] embargo data from 954 field
+
   # @return [String] JSON string
-  def self.build(field:, date:, embargo:)
-    new(field:, date:, embargo:).build
+  def self.build(field:)
+    new(field:).build
   end
 
-  attr_reader :embargo, :field, :date
+  attr_reader :field
 
   # Constructor
   # @param field [MARC::DataField] data from 951 field
-  # @param date [MARC::DataField] date range data from 953 field
-  # @param embargo [MARC::DataField] embargo data from 954 field
-  def initialize(field:, date:, embargo:)
+  def initialize(field:)
     @field = field
-    @date = date
-    @embargo = embargo
   end
 
   def build
@@ -28,46 +23,12 @@ def build
       desc: field['k'],
       title: portfolio_title,
       url: field['x'],
-      start: start_date,
-      end: end_date,
       notes: public_notes
     }.to_json
   end
 
   private
 
-    # Formulas for start and end dates come from Alma
-    # documentation on the embargo operator:
-    # <=  Most recent X year(s) available
-    # >=  Most recent X year(s) not available
-    # <   Most recent X year(s)-1 available
-    # >   Most recent X year(s)+1 not available
-    def start_date
-      if embargo && (embargo['b'] == '<=')
-        (DateTime.now.year - embargo['c'].to_i).to_s
-      elsif embargo && embargo['b'] == '<'
-        (DateTime.now.year - (embargo['c'].to_i - 1)).to_s
-      elsif date
-        date['b']
-      end
-    end
-
-    def end_date
-      if embargo && (embargo['b'] == '>=')
-        (DateTime.now.year - embargo['c'].to_i).to_s
-      elsif embargo && (embargo['b'] == '<=')
-        'latest'
-      elsif embargo && embargo['b'] == '<'
-        'latest'
-      elsif embargo && embargo['b'] == '>'
-        (DateTime.now.year - (embargo['c'].to_i + 1)).to_s
-      elsif date && date['c']
-        date['c']
-      else
-        'latest'
-      end
-    end
-
     def portfolio_title
       field['n'].nil? ? 'Online Content' : field['n']
     end
diff --git a/marc_to_solr/lib/princeton_marc.rb b/marc_to_solr/lib/princeton_marc.rb
index bf60f6d11..9f56e55a0 100644
--- a/marc_to_solr/lib/princeton_marc.rb
+++ b/marc_to_solr/lib/princeton_marc.rb
@@ -344,14 +344,6 @@ def alma_951_active(record)
   alma_951&.select { |f| f['a'] == 'Available' }
 end
 
-def alma_953(record)
-  record.fields('953').select { |f| alma_code_start_53?(f['a']) }
-end
-
-def alma_954(record)
-  record.fields('954').select { |f| alma_code_start_53?(f['a']) }
-end
-
 def process_holdings(record)
   all_holdings = {}
   holdings_helpers = ProcessHoldingsHelpers.new(record:)
diff --git a/marc_to_solr/lib/traject_config.rb b/marc_to_solr/lib/traject_config.rb
index dd006519a..587099107 100644
--- a/marc_to_solr/lib/traject_config.rb
+++ b/marc_to_solr/lib/traject_config.rb
@@ -1541,13 +1541,9 @@
 to_field 'electronic_portfolio_s' do |record, accumulator|
   # Don't check for scsb
   fields = alma_951_active(record)
-  dates = alma_953(record)
-  embargoes = alma_954(record)
 
   fields.map do |field|
-    date = dates.find { |d| d['a'] == field['8'] }
-    embargo = embargoes.find { |e| e['a'] == field['8'] }
-    accumulator << ElectronicPortfolioBuilder.build(field:, date:, embargo:)
+    accumulator << ElectronicPortfolioBuilder.build(field:)
   end
 end
 
diff --git a/spec/marc_to_solr/lib/config_spec.rb b/spec/marc_to_solr/lib/config_spec.rb
index e3fee69e4..9b996c4fe 100644
--- a/spec/marc_to_solr/lib/config_spec.rb
+++ b/spec/marc_to_solr/lib/config_spec.rb
@@ -257,14 +257,6 @@ def fixture_record(fixture_name, indexer: @indexer)
         expect(nature['desc']).to eq 'Available from 1869 volume: 1 issue: 1.'
         expect(nature['notes']).to be_empty
 
-        # Date range with explicit start and no end date
-        expect(nature['start']).to eq '1869'
-        expect(nature['end']).to eq 'latest'
-
-        # Date range with explicit start and end
-        expect(ebsco['start']).to eq '1997'
-        expect(ebsco['end']).to eq '2015'
-
         # electronic_portfolio_s should not include non alma 951(s).
         expect(resource1).to be_nil
         expect(resource2).to be_nil
@@ -276,13 +268,6 @@ def fixture_record(fixture_name, indexer: @indexer)
         portfolios = @electronic_portfolio_embargo['electronic_portfolio_s'].map { |p| JSON.parse(p) }
         portfolio1 = portfolios.find { |p| p['title'] == 'EBSCOhost Academic Search Ultimate' }
         portfolio2 = portfolios.find { |p| p['title'] == 'Taylor & Francis Medical Library' }
-
-        # Date range with greater than or equal to embargo
-        expect(portfolio1['start']).to eq '2001'
-        expect(portfolio1['end']).to eq (DateTime.now.year - 1).to_s
-
-        expect(portfolio2['start']).to eq '1997'
-        expect(portfolio2['end']).to eq 'latest'
       end
 
       it 'does not index an inactive electronic_portfolio' do