diff --git a/lib/aptible/api/account.rb b/lib/aptible/api/account.rb
index b8b310d..956bb6f 100644
--- a/lib/aptible/api/account.rb
+++ b/lib/aptible/api/account.rb
@@ -17,6 +17,7 @@ class Account < Resource
       has_many :metric_drains
       has_many :vhosts
       has_many :backup_retention_policies
+      has_many :service_sizing_policies
       embeds_many :log_drains
 
       field :id
diff --git a/lib/aptible/api/resource.rb b/lib/aptible/api/resource.rb
index 08890d5..d372d35 100644
--- a/lib/aptible/api/resource.rb
+++ b/lib/aptible/api/resource.rb
@@ -35,6 +35,7 @@ def root_url
 require 'aptible/api/permission'
 require 'aptible/api/release'
 require 'aptible/api/service'
+require 'aptible/api/service_sizing_policy'
 require 'aptible/api/source'
 require 'aptible/api/vhost'
 require 'aptible/api/ssh_portal_connection'
diff --git a/lib/aptible/api/service.rb b/lib/aptible/api/service.rb
index 42fd0ad..e418527 100644
--- a/lib/aptible/api/service.rb
+++ b/lib/aptible/api/service.rb
@@ -9,6 +9,7 @@ class Service < Resource
       has_many :operations
       has_many :releases
       has_many :disk_attachments
+      has_one :service_sizing_policy
 
       field :id
       field :handle
diff --git a/lib/aptible/api/service_sizing_policy.rb b/lib/aptible/api/service_sizing_policy.rb
new file mode 100644
index 0000000..5b00c60
--- /dev/null
+++ b/lib/aptible/api/service_sizing_policy.rb
@@ -0,0 +1,33 @@
+module Aptible
+  module Api
+    class ServiceSizingPolicy < Resource
+      belongs_to :account
+      has_many :services
+
+      field :id
+      field :created_at, type: Time
+      field :updated_at, type: Time
+
+      field :scaling_enabled
+      field :default_policy
+      field :metric_lookback_seconds
+      field :percentile
+      field :post_scale_up_cooldown_seconds
+      field :post_scale_down_cooldown_seconds
+      field :post_release_cooldown_seconds
+      field :mem_cpu_ratio_r_threshold
+      field :mem_cpu_ratio_c_threshold
+      field :mem_scale_up_threshold
+      field :mem_scale_down_threshold
+      field :minimum_memory
+      field :disable_recommendations
+      field :maximum_memory
+      field :cpu_consideration_threshold
+      field :autoscaling
+      field :min_cpu_threshold
+      field :max_cpu_threshold
+      field :min_containers
+      field :max_containers
+    end
+  end
+end