diff --git a/.rubocop.yml b/.rubocop.yml
new file mode 100644
index 00000000..a99f6f29
--- /dev/null
+++ b/.rubocop.yml
@@ -0,0 +1,70 @@
+# The behavior of RuboCop can be controlled via the .rubocop.yml
+# configuration file. It makes it possible to enable/disable
+# certain cops (checks) and to alter their behavior if they accept
+# any parameters. The file can be placed either in your home
+# directory or in some project directory.
+#
+# RuboCop will start looking for the configuration file in the directory
+# where the inspected file is and continue its way up to the root directory.
+#
+# See https://docs.rubocop.org/rubocop/configuration
+
+plugins:
+- rubocop-capybara
+- rubocop-rspec
+
+AllCops:
+  NewCops: enable
+
+# Conveniences because we're using Jekyll
+
+RSpec/DescribeClass:
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+RSpec/ExampleLength:
+  Max: 15
+
+# end Jekyl-specific choices
+
+# Settings copied over from team preferences for Partner Portal
+
+RSpec/NotToNot:
+  EnforcedStyle: to_not
+
+Capybara/NegationMatcher:
+  EnforcedStyle: not_to
+
+Layout/FirstHashElementIndentation:
+  EnforcedStyle: consistent
+
+RSpec/ExpectChange:
+  # A couple people expressed a preference for block
+  EnforcedStyle: block
+
+Naming/RescuedExceptionsVariableName:
+  PreferredName: err
+
+Style/HashSyntax:
+  EnforcedShorthandSyntax: consistent
+
+Layout/DotPosition:
+  EnforcedStyle: leading
+
+Layout/MultilineMethodCallIndentation:
+  Enabled: false
+
+Layout/FirstArgumentIndentation:
+  Enabled: false
+
+RSpec/MultipleExpectations:
+  Enabled: false
+
+# End team settings from Partner Portal
+
+# Ruby 3.4 doesn't need this
+
+Style/FrozenStringLiteralComment:
+  EnforcedStyle: never
diff --git a/.ruby-version b/.ruby-version
index 5ae69bd5..47b322c9 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.2.5
+3.4.1
diff --git a/Gemfile b/Gemfile
index ecdd3a92..d3687b06 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,22 +2,26 @@ source 'https://rubygems.org'
 
 ruby File.read('.ruby-version').strip
 
+gem 'csv'
 gem 'jekyll', '~> 4.3.0'
-gem 'jekyll-sass-converter', '~> 3.0.0'
-gem 'kramdown-parser-gfm', '~> 1.0'
 gem 'jekyll-redirect-from'
+gem 'jekyll-sass-converter', '~> 3.0.0'
 gem 'jekyll-sitemap'
+gem 'kramdown-parser-gfm', '~> 1.0'
 
 group :development, :test do
   gem 'pry-byebug'
+  gem 'rubocop', require: false
+  gem 'rubocop-capybara', require: false
+  gem 'rubocop-rspec', require: false
 end
 
 group :test do
   gem 'capybara'
   gem 'html-proofer', '~> 4.0'
   gem 'nokogiri', '>= 1.10.5'
-  gem 'rackup' # required for `Capybara.server = :webrick`
   gem 'rack-jekyll'
+  gem 'rackup' # required for `Capybara.server = :webrick`
   gem 'rspec'
   gem 'rspec_junit_formatter', require: false
   gem 'selenium-webdriver'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9543334d..fe2ff0ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,6 +3,7 @@ GEM
   specs:
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
+    ast (2.4.3)
     base64 (0.3.0)
     bigdecimal (3.1.8)
     byebug (12.0.0)
@@ -18,6 +19,7 @@ GEM
     coderay (1.1.3)
     colorator (1.1.0)
     concurrent-ruby (1.3.4)
+    csv (3.3.5)
     diff-lcs (1.5.1)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
@@ -66,10 +68,13 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
+    json (2.12.2)
     kramdown (2.4.0)
       rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
+    language_server-protocol (3.17.0.5)
+    lint_roller (1.1.0)
     liquid (4.0.4)
     listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
@@ -84,8 +89,12 @@ GEM
       mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     parallel (1.26.3)
+    parser (3.3.8.0)
+      ast (~> 2.4.1)
+      racc
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
+    prism (1.4.0)
     pry (0.15.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -127,6 +136,27 @@ GEM
     rspec-support (3.13.1)
     rspec_junit_formatter (0.6.0)
       rspec-core (>= 2, < 4, != 2.12.0)
+    rubocop (1.76.1)
+      json (~> 2.3)
+      language_server-protocol (~> 3.17.0.2)
+      lint_roller (~> 1.1.0)
+      parallel (~> 1.10)
+      parser (>= 3.3.0.2)
+      rainbow (>= 2.2.2, < 4.0)
+      regexp_parser (>= 2.9.3, < 3.0)
+      rubocop-ast (>= 1.45.0, < 2.0)
+      ruby-progressbar (~> 1.7)
+      unicode-display_width (>= 2.4.0, < 4.0)
+    rubocop-ast (1.45.1)
+      parser (>= 3.3.7.2)
+      prism (~> 1.4)
+    rubocop-capybara (2.22.1)
+      lint_roller (~> 1.1)
+      rubocop (~> 1.72, >= 1.72.1)
+    rubocop-rspec (3.6.0)
+      lint_roller (~> 1.1)
+      rubocop (~> 1.72, >= 1.72.1)
+    ruby-progressbar (1.13.0)
     rubyzip (2.4.1)
     safe_yaml (1.0.5)
     sass-embedded (1.80.6)
@@ -155,6 +185,7 @@ PLATFORMS
 
 DEPENDENCIES
   capybara
+  csv
   html-proofer (~> 4.0)
   jekyll (~> 4.3.0)
   jekyll-redirect-from
@@ -167,10 +198,13 @@ DEPENDENCIES
   rackup
   rspec
   rspec_junit_formatter
+  rubocop
+  rubocop-capybara
+  rubocop-rspec
   selenium-webdriver
 
 RUBY VERSION
-   ruby 3.2.5p208
+   ruby 3.4.1p0
 
 BUNDLED WITH
    2.6.9
diff --git a/_config.yml b/_config.yml
index 3fcb5142..b4e72b98 100644
--- a/_config.yml
+++ b/_config.yml
@@ -44,10 +44,13 @@ exclude:
   - .sass-cache/
   - .jekyll-cache/
   - assets/scss
+  - bin
   - gemfiles/
   - Gemfile
   - Gemfile.lock
   - node_modules/
+  - scripts
+  - spec
   - vendor/bundle/
   - vendor/cache/
   - vendor/gems/
diff --git a/_plugins/content_code.rb b/_plugins/content_code.rb
index 32be65ee..be4185bf 100644
--- a/_plugins/content_code.rb
+++ b/_plugins/content_code.rb
@@ -2,24 +2,34 @@
 
 # Include tabindex for accessibility reasons
 # See: https://github.com/rouge-ruby/rouge?tab=readme-ov-file#formatters
-class Rouge::Formatters::HTMLPygmentsA11y < Rouge::Formatters::HTMLPygments
-  def stream(tokens, &b)
-    yield %(<div class="highlight"><pre class="#{@css_class}" tabindex="0"><code>)
-    @inner.stream(tokens, &b)
-    yield "</code></pre></div>"
+module Rouge
+  module Formatters
+    class HTMLPygmentsA11y < Rouge::Formatters::HTMLPygments
+      def stream(tokens, &)
+        yield %(<div class="highlight"><pre class="#{@css_class}" tabindex="0"><code>)
+        @inner.stream(tokens, &)
+        yield '</code></pre></div>'
+      end
+    end
   end
 end
 
-class Rouge::Formatters::HTMLLegacyA11y < Rouge::Formatters::HTMLLegacy
-  def initialize(opts={})
-    @formatter = opts[:inline_theme] ? Rouge::Formatters::HTMLInline.new(opts[:inline_theme])
-               : Rouge::Formatters::HTML.new
+module Rouge
+  module Formatters
+    class HTMLLegacyA11y < Rouge::Formatters::HTMLLegacy
+      def initialize(opts = {}) # rubocop:disable Lint/MissingSuper
+        @formatter = if opts[:inline_theme]
+                       Rouge::Formatters::HTMLInline.new(opts[:inline_theme])
+                     else
+                       Rouge::Formatters::HTML.new
+                     end
 
+        @formatter = Rouge::Formatters::HTMLTable.new(@formatter, opts) if opts[:line_numbers]
 
-    @formatter = Rouge::Formatters::HTMLTable.new(@formatter, opts) if opts[:line_numbers]
+        return unless opts.fetch(:wrap, true)
 
-    if opts.fetch(:wrap, true)
-      @formatter = Rouge::Formatters::HTMLPygmentsA11y.new(@formatter, opts.fetch(:css_class, 'codehilite'))
+        @formatter = Rouge::Formatters::HTMLPygmentsA11y.new(@formatter, opts.fetch(:css_class, 'codehilite'))
+      end
     end
   end
 end
diff --git a/_plugins/content_typography.rb b/_plugins/content_typography.rb
index 0258ca4a..6d5be4fc 100644
--- a/_plugins/content_typography.rb
+++ b/_plugins/content_typography.rb
@@ -1,10 +1,11 @@
 module Kramdown
   module Parser
     class Kramdown
+      # rubocop:disable Naming/MethodParameterName
       prepend(Module.new do
         def add_link(el, *args)
           add_link_class!(el) if el.type == :a
-          super(el, *args)
+          super
         end
 
         def parse_autolink
@@ -17,6 +18,7 @@ def add_link_class!(el)
           el.attr['class'] = [*el.attr['class'], 'usa-link'].join(' ')
         end
       end)
+      # rubocop:enable Naming/MethodParameterName
     end
   end
 end
diff --git a/_plugins/copy_to_destination.rb b/_plugins/copy_to_destination.rb
index a0f3349a..c1a24cfe 100644
--- a/_plugins/copy_to_destination.rb
+++ b/_plugins/copy_to_destination.rb
@@ -1,7 +1,7 @@
 module Jekyll
   module CopyToDestination
     class CopyGenerator < Generator
-      def generate(site)
+      def generate(site) # rubocop:disable Metrics/AbcSize,Metrics/MethodLength
         folders = site.config['copy_to_destination'] || []
 
         static_files = folders.map do |relative_path|
diff --git a/_plugins/pretty_jsonify.rb b/_plugins/pretty_jsonify.rb
index 48fbf122..746525e7 100644
--- a/_plugins/pretty_jsonify.rb
+++ b/_plugins/pretty_jsonify.rb
@@ -3,11 +3,7 @@
 module LoginGov
   module PrettyJsonify
     def pretty_jsonify(input)
-      json = if input.kind_of?(String)
-        JSON.parse(input)
-      else
-        json
-      end
+      json = JSON.parse(input) if input.is_a?(String)
 
       JSON.pretty_generate(json)
     end
diff --git a/_plugins/yaml_content_disposition.rb b/_plugins/yaml_content_disposition.rb
index 09043f59..81dcdfbb 100644
--- a/_plugins/yaml_content_disposition.rb
+++ b/_plugins/yaml_content_disposition.rb
@@ -5,7 +5,7 @@ module Commands
     class Serve
       class Servlet < WEBrick::HTTPServlet::FileHandler
         prepend(Module.new do
-          def do_GET(req, res)
+          def do_GET(req, res) # rubocop:disable Naming/MethodName
             res.header.merge!('Content-Disposition' => 'attachment') if req.path.end_with?('.yml')
             super
           end
diff --git a/scripts/htmlproofer b/scripts/htmlproofer
index d976fe64..8bdf3ef8 100755
--- a/scripts/htmlproofer
+++ b/scripts/htmlproofer
@@ -22,7 +22,7 @@ proofer_options.merge!(
   typhoeus: {
     ssl_verifypeer: false,
     ssl_verifyhost: 0,
-    followlocation: false,
+    followlocation: false
   },
   swap_urls: {
     "http://localhost:#{site_config['port']}" => 'https://developers.login.gov'
@@ -39,7 +39,6 @@ proofer.before_request do |request|
   # Some URLs behave differently if `accept-language` header is not included. Remove this in the
   # future if it's no longer needed.
   request.options[:headers]['Accept-Language'] = '*'
-  
 end
 
 proofer.run
diff --git a/spec/page.md_spec.rb b/spec/page.md_spec.rb
index bc7bdb18..e1e94aad 100644
--- a/spec/page.md_spec.rb
+++ b/spec/page.md_spec.rb
@@ -6,7 +6,7 @@ def redirect_page?(path)
 
 RSpec.describe 'all pages' do
   files = Dir.glob('_site/**/*.html')
-  files.reject! {|path| redirect_page?(path) }
+  files.reject! { |path| redirect_page?(path) }
   files.each do |page|
     describe page do
       let(:doc) { Nokogiri::HTML(File.new(page.to_s)) }
@@ -24,7 +24,7 @@ def redirect_page?(path)
         expect(doc.to_s).to include('https://www.googletagmanager.com/gtag/js')
       end
 
-      it 'does not include markdown markup in description meta tags', aggregate_failures: true do
+      it 'does not include markdown markup in description meta tags', :aggregate_failures do
         description = doc.at_css('meta[name=description]')
         expect(description[:content]).to_not(include('](')) if description
 
diff --git a/spec/risc.json_spec.rb b/spec/risc.json_spec.rb
index 66182a26..db37a879 100644
--- a/spec/risc.json_spec.rb
+++ b/spec/risc.json_spec.rb
@@ -5,7 +5,7 @@
   let(:json) { JSON.parse(File.read('_site/data/risc.json')) }
 
   it 'is is an array of supported_events' do
-    expect(json).to be
+    expect(json).to be_any
     expect(json['supported_events']).to be_a(Array)
   end
-end
\ No newline at end of file
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 31ee63c1..d561333a 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,11 +1,8 @@
 require 'rspec'
 require 'pathname'
 require 'nokogiri'
-require 'set'
 require 'uri'
 
 Dir['spec/support/**.rb'].each { |f| require File.expand_path(f) }
 
-RSpec.configure do |config|
-  config.disable_monkey_patching!
-end
+RSpec.configure(&:disable_monkey_patching!)
diff --git a/spec/support/matchers.rb b/spec/support/matchers.rb
index 77c62faa..3f47db32 100644
--- a/spec/support/matchers.rb
+++ b/spec/support/matchers.rb
@@ -5,7 +5,7 @@
     doc = actual
 
     doc.css('a[href^=http]').each do |a|
-      next if !a.ancestors('nav').empty?
+      next unless a.ancestors('nav').empty?
 
       missing_target_blank << a[:href] if a[:target] != '_blank'
     end
@@ -59,9 +59,7 @@
     ids = Set.new
 
     doc.css('[id]').each do |tag|
-      if ids.include?(tag[:id])
-        duplicate_ids << tag[:id]
-      end
+      duplicate_ids << tag[:id] if ids.include?(tag[:id])
 
       ids << tag[:id]
     end