diff --git a/src/FedexRest/Entity/PackageSpecialServicesRequested.php b/src/FedexRest/Entity/PackageSpecialServicesRequested.php
index 81a9bdb..6c97f40 100644
--- a/src/FedexRest/Entity/PackageSpecialServicesRequested.php
+++ b/src/FedexRest/Entity/PackageSpecialServicesRequested.php
@@ -2,12 +2,16 @@
 
 namespace FedexRest\Entity;
 
+use FedexRest\Services\Ship\Type\PackageSpecialServiceType;
+
 class PackageSpecialServicesRequested
 {
 
   public array $specialServiceTypes;
   public ?DangerousGoodsDetail $dangerousGoodsDetail;
   public ?Weight $dryIceWeight;
+  public ?$signatureOptionType;
+  public ?PackageSpecialServiceType $dangerousGoods;
 
   /**
    * @param array $specialServiceTypes
@@ -38,6 +42,16 @@ public function setDangerousGoodsDetail(?DangerousGoodsDetail $dangerousGoodsDet
     $this->dangerousGoodsDetail = $dangerousGoodsDetail;
     return $this;
   }
+  
+  /**
+   * @param ?DangerousGoods $dangerousGoods
+   * @return $this
+   */
+  public function setDangerousGoods(?PackageSpecialServiceType $dangerousGoods): PackageSpecialServicesRequested
+  {
+    $this->dangerousGoods = $dangerousGoods;
+    return $this;
+  }
 
   /**
    * @param ?Weight $dryIceWeight
@@ -48,12 +62,26 @@ public function setDryIceWeight(?Weight $dryIceWeight): PackageSpecialServicesRe
     $this->dryIceWeight = $dryIceWeight;
     return $this;
   }
-
+  
+  /**
+   * @param ?PackageSpecialServiceType $signatureOptionType
+   * @return $this
+   */
+  public function setSignatureOptionType(?PackageSpecialServiceType $signatureOptionType): PackageSpecialServicesRequested {
+    $this->signatureOptionType = $signatureOptionType;
+    return $this;
+  
+  }
+  
   public function prepare(): array {
     $data = [];
 
-    if (!empty($this->setSpecialServiceTypes)) {
-      $data['specialServiceTypes'] = $this->setSpecialServiceTypes;
+    if (!empty($this->specialServiceTypes)) {
+      $data['specialServiceTypes'] = $this->specialServiceTypes;
+    }
+    
+    if (!empty($this->dangerousGoods)) {
+      $data['dangerousGoods'] = $this->dangerousGoods;
     }
 
     if (!empty($this->dangerousGoodsDetail)) {
@@ -63,7 +91,10 @@ public function prepare(): array {
     if (!empty($this->dryIceWeight)) {
       $data['dryIceWeight'] = $this->dryIceWeight->prepare();
     }
-
+    
+    if (!empty($this->signatureOptionType)) {
+      $data['signatureOptionType'] = $this->signatureOptionType;
+    }
     return $data;
   }
 
diff --git a/src/FedexRest/Services/Rates/CreateRatesRequest.php b/src/FedexRest/Services/Rates/CreateRatesRequest.php
index 6ce3d7e..2339fa2 100644
--- a/src/FedexRest/Services/Rates/CreateRatesRequest.php
+++ b/src/FedexRest/Services/Rates/CreateRatesRequest.php
@@ -12,10 +12,13 @@
 use FedexRest\Services\Ship\Entity\Label;
 use FedexRest\Services\Ship\Entity\ShipmentSpecialServices;
 use FedexRest\Services\Ship\Entity\ShippingChargesPayment;
+use FedexRest\Services\Ship\Entity\SmartPostInfoDetail;
+use FedexRest\Services\Ship\Entity\CustomsClearanceDetail;
 use GuzzleHttp\Exception\GuzzleException;
 
 class CreateRatesRequest extends AbstractRequest
 {
+
     protected Person $shipper;
     protected Person $recipient;
     protected Label $label;
@@ -24,10 +27,12 @@ class CreateRatesRequest extends AbstractRequest
     protected array $rateRequestTypes;
     protected string $packagingType = '';
     protected string $pickupType = '';
+    protected ?SmartPostInfoDetail $smart_post;    
     protected int $accountNumber;
     protected array $lineItems = [];
     protected ShipmentSpecialServices $shipmentSpecialServices;
     protected ShippingChargesPayment $shippingChargesPayment;
+    protected ?CustomsClearanceDetail $customsClearanceDetail;
     protected int $totalWeight;
     protected string $preferredCurrency = '';
     protected int $totalPackageCount;
@@ -154,6 +159,15 @@ public function getPickupType(): string
         return $this->pickupType;
     }
 
+    /**
+     * @param SmartPostInfoDetail $SmartPostInfoDetail
+     * @return $this
+     */
+    public function setSmartPost(SmartPostInfoDetail $smartPost): CreateRatesRequest {
+        $this->smart_post = $smartPost;
+        return $this;
+    }
+    
     /**
      * @param int $accountNumber
      * @return $this
@@ -229,6 +243,15 @@ public function getShippingChargesPayment(): ShippingChargesPayment
     {
         return $this->shippingChargesPayment;
     }
+    
+    /**
+     * @param CustomsClearanceDetail $customsClearanceDetail
+     * @return $this
+     */
+    public function setCustomsClearanceDetail(CustomsClearanceDetail $customsClearanceDetail) {
+        $this->customsClearanceDetail = $customsClearanceDetail;
+        return $this;
+    }
 
     /**
      * @param int $totalWeight
@@ -306,24 +329,24 @@ public function getServicesNeededOnRateFailure(): bool
         return $this->servicesNeededOnRateFailure;
     }
 
-    public function setVariableOptions(?string $variableOptions): CreateRatesRequest
+    public function setVariableOptions(string $variableOptions): CreateRatesRequest
     {
         $this->variableOptions = $variableOptions;
         return $this;
     }
 
-    public function getVariableOptions(): ?string
+    public function getVariableOptions(): string
     {
         return $this->variableOptions;
     }
 
-    public function setRateSortOrder(?string $rateSortOrder): CreateRatesRequest
+    public function setRateSortOrder(string $rateSortOrder): CreateRatesRequest
     {
         $this->rateSortOrder = $rateSortOrder;
         return $this;
     }
 
-    public function getRateSortOrder(): ?string
+    public function getRateSortOrder(): string
     {
         return $this->rateSortOrder;
     }
@@ -383,11 +406,16 @@ public function getRequestedShipment(): array
             'recipient' => $this->recipient->prepare(),
             'pickupType' => $this->pickupType,
             'requestedPackageLineItems' => $line_items,
+            'smartPostInfoDetail' => $this->smart_post,
         ];
 
         if (!empty($this->shipmentSpecialServices)) {
             $data['shipmentSpecialServices'] = $this->shipmentSpecialServices->prepare();
         }
+        
+        if (!empty($this->customsClearanceDetail)) {
+            $data['customsClearanceDetail'] = $this->customsClearanceDetail->prepare();
+        }
 
         if (!empty($this->serviceType)) {
             $data['serviceType'] = $this->serviceType;
@@ -421,7 +449,7 @@ public function getRequestedShipment(): array
     }
 
     public function prepare(): array
-    {
+    { 
         return [
             'accountNumber' => [
                 'value' => $this->accountNumber,
diff --git a/src/FedexRest/Services/Ship/Entity/Commodities.php b/src/FedexRest/Services/Ship/Entity/Commodities.php
new file mode 100644
index 0000000..2f44df2
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Entity/Commodities.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace FedexRest\Services\Ship\Entity;
+
+use FedexRest\Entity\Weight;
+use FedexRest\Services\Ship\Entity\Value;
+
+class Commodities
+{
+    public string $name;
+    public string $description;
+    public string $countryOfManufacture;
+    public string $quantity;
+    public string $harmonizedCode;
+    public ?Weight $weight;
+    public ?Value $customsValue;
+    
+    /**
+     * @param  string $name
+     * @return $this
+     */
+    public function setName(string $name): Commodities
+    {
+        $this->name = $name;
+        return $this;
+    }
+    
+    /**
+     * @param  string  $description
+     * @return $this
+     */
+    public function setDescription(string $description): Commodities
+    {
+        $this->description = $description;
+        return $this;
+    }
+    
+    /**
+     * @param  string $countryOfManufacture
+     * @return $this
+     */
+    public function setCountryOfManufacture(string $countryOfManufacture): Commodities
+    {
+        $this->countryOfManufacture = $countryOfManufacture;
+        return $this;
+    }
+    
+    /**
+     * @param  string $countryOfManufacture
+     * @return $this
+     */
+    public function setQuantity(string $quantity): Commodities
+    {
+        $this->quantity = $quantity;
+        return $this;
+    }
+    
+    /**
+     * @param  string $harmonizedCode
+     * @return $this
+     */
+    public function setHarmonizedCode(string $harmonizedCode): Commodities
+    {
+        $this->harmonizedCode = $harmonizedCode;
+        return $this;
+    }
+    
+    /**
+     * @param  Value $customsValue
+     * @return $this
+     */
+    public function setCustomsValue(Value $customsValue): Commodities
+    {
+        $this->customsValue = $customsValue;
+        return $this;
+    }
+    
+    /**
+     * @param  Weight $weight
+     * @return $this
+     */
+    public function setWeight(Weight $weight): Commodities
+    {
+        $this->weight = $weight;
+        return $this;
+    }
+    
+
+    public function prepare(): array {
+        $data = [];
+        if (!empty($this->name)) {
+            $data['name'] = ($this->name);
+        }
+        if (!empty($this->description)) {
+            $data['description'] = ($this->description);
+        }
+        if (!empty($this->countryOfManufacture)) {
+            $data['countryOfManufacture'] = ($this->countryOfManufacture);
+        }
+        if (!empty($this->quantity)) {
+            $data['quantity'] = ($this->quantity);
+        }
+        if (!empty($this->harmonizedCode)) {
+            $data['harmonizedCode'] = ($this->harmonizedCode);
+        }
+        if (!empty($this->weight)) {
+            $data['weight'] = ($this->weight);
+        }        
+        if (!empty($this->customsValue)) {
+            $data['customsValue'] = ($this->customsValue);
+        }        
+        return $data;
+    }
+
+
+}
diff --git a/src/FedexRest/Services/Ship/Entity/CustomsClearanceDetail.php b/src/FedexRest/Services/Ship/Entity/CustomsClearanceDetail.php
new file mode 100644
index 0000000..3ec8021
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Entity/CustomsClearanceDetail.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace FedexRest\Services\Ship\Entity;
+
+use FedexRest\Services\Ship\Entity\Commodities;
+use FedexRest\Services\Ship\Entity\DutiesPayment;
+
+class CustomsClearanceDetail
+{
+    public ?Commodities $commodities;
+    public ?DutiesPayment $dutiesPayment;
+
+    /**
+     * @param  Commodities  $commodities
+     * @return $this
+     */
+    public function setCommodities(?Commodities $commodities): CustomsClearanceDetail
+    {
+        $this->commodities = $commodities;
+        return $this;
+    }
+    
+    /**
+     * @param  DutiesPayment $dutiesPayment
+     * @return $this
+     */
+    public function setDutiesPayment(?DutiesPayment $dutiesPayment): CustomsClearanceDetail
+    {
+        $this->dutiesPayment = $dutiesPayment;
+        return $this;
+    }
+
+
+    public function prepare(): array {
+        $data = [];
+        if (!empty($this->commodities)) {
+            $data['commodities'] = (array($this->commodities->prepare()));
+        }
+        if (!empty($this->dutiesPayment)) {
+            $data['dutiesPayment'] = ($this->dutiesPayment);
+        }
+        return $data;
+    }
+
+
+}
diff --git a/src/FedexRest/Services/Ship/Entity/DutiesPayment.php b/src/FedexRest/Services/Ship/Entity/DutiesPayment.php
new file mode 100644
index 0000000..b9423d7
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Entity/DutiesPayment.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace FedexRest\Services\Ship\Entity;
+
+use FedexRest\Services\Ship\Type\PaymentType;
+
+class DutiesPayment
+{
+    public ?PaymentType $paymentType;
+    public string $payor;
+    
+    /**
+     * @param PaymentType $paymentType
+     * @return $this
+     */
+    public function setPaymentType(?PaymentType $paymentType): DutiesPayment
+    {
+        $this->paymentType = $paymentType;
+        return $this;
+    }
+    
+    /**
+     * @param  array $payor
+     * @return $this
+     */
+    public function setPayor(string $payor = NULL): DutiesPayment
+    {
+        $this->payor = array('responsibleParty'=>$payor);
+        return $this;
+    }
+    
+    public function prepare(): array {
+        $data = [];
+        if (!empty($this->paymentType)) {
+            $data['paymentType'] = ($this->paymentType);
+        }
+        if (!empty($this->payor)) {
+            $data['payor'] = ($this->payor);
+        }   
+        return $data;
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/FedexRest/Services/Ship/Type/AncillaryEncorsementType.php b/src/FedexRest/Services/Ship/Type/AncillaryEncorsementType.php
new file mode 100644
index 0000000..15ab95f
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Type/AncillaryEncorsementType.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace FedexRest\Services\Ship\Type;
+
+class AncillaryEncorsementType
+{
+    const _ADDRESS_CORRECTION = 'ADDRESS_CORRECTION';
+    const _CARRIER_LEAVE_IF_NO_RESPONSE = 'CARRIER_LEAVE_IF_NO_RESPONSE';
+    const _CHANGE_SERVICE = 'CHANGE_SERVICE';
+    const _FORWARDING_SERVICE = 'FORWARDING_SERVICE';
+    const _RETURN_SERVICE = 'RETURN_SERVICE';
+}
\ No newline at end of file
diff --git a/src/FedexRest/Services/Ship/Type/PaymentType.php b/src/FedexRest/Services/Ship/Type/PaymentType.php
new file mode 100644
index 0000000..fd0b0cf
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Type/PaymentType.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace FedexRest\Services\Ship\Type;
+
+class PaymentType
+{
+    const _SENDER = 'SENDER';
+}
diff --git a/src/FedexRest/Services/Ship/Type/RateRequestType.php b/src/FedexRest/Services/Ship/Type/RateRequestType.php
new file mode 100644
index 0000000..d94b673
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Type/RateRequestType.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace FedexRest\Services\Ship\Type;
+
+class RateRequestType
+{
+    const _ACCOUNT = 'ACCOUNT';
+    const _ACTUAL = 'ACTUAL';
+    const _CURRENT = 'CURRENT';
+    const _CUSTOM = 'CUSTOM';
+    const _LIST = 'LIST';
+    const _INCENTIVE = 'INCENTIVE';
+    const _PREFERRED = 'PREFERRED';
+    const _PREFERRED_INCENTIVE = 'PREFERRED_INCENTIVE';
+    const _PREFERRED_CURRENCY = 'PREFERRED_CURRENCY';
+    const _SENDER = 'SENDER';
+    const _PREFERRED_ACCOUNT_PACKAGE = 'PREFERRED_ACCOUNT_PACKAGE';
+    const _PAYOR_LIST_PACKAGE = 'PAYOR_LIST_PACKAGE';   
+}
diff --git a/src/FedexRest/Services/Ship/Type/SignatureOptionType.php b/src/FedexRest/Services/Ship/Type/SignatureOptionType.php
new file mode 100644
index 0000000..ceb7f39
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Type/SignatureOptionType.php
@@ -0,0 +1,12 @@
+<?php
+
+namespace FedexRest\Services\Ship\Type;
+
+class SignatureOptionType
+{
+    const _SERVICE_DEFAULT = 'SERVICE_DEFAULT';
+    const _NO_SIGNATURE_REQUIRED = 'USPS_DELIVERY_CONFIRMATION';
+    const _INDIRECT = 'INDIRECT';
+    const _DIRECT = 'DIRECT';
+    const _ADULT = 'ADULT';
+}
diff --git a/src/FedexRest/Services/Ship/Type/SmartPostIndiciaType.php b/src/FedexRest/Services/Ship/Type/SmartPostIndiciaType.php
new file mode 100644
index 0000000..56a0e55
--- /dev/null
+++ b/src/FedexRest/Services/Ship/Type/SmartPostIndiciaType.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace FedexRest\Services\Ship\Type;
+
+class SmartPostIndiciaType
+{
+    const _MEDIA_MAIL = 'MEDIA_MAIL';
+    const _PARCEL_RETURN = 'PARCEL_RETURN';
+    const _PARCEL_SELECT = 'PARCEL_SELECT';
+    const _PRESORTED_BOUND_PRINTED_MATTER = 'PRESORTED_BOUND_PRINTED_MATTER';
+    const _PRESORTED_STANDARD = 'PRESORTED_STANDARD';
+}
+
diff --git a/src/FedexRest/Services/Ship/Type/SpecialServiceType.php b/src/FedexRest/Services/Ship/Type/SpecialServiceType.php
index 5145de2..187c38a 100644
--- a/src/FedexRest/Services/Ship/Type/SpecialServiceType.php
+++ b/src/FedexRest/Services/Ship/Type/SpecialServiceType.php
@@ -5,4 +5,5 @@
 class SpecialServiceType
 {
     const _USPS_DELIVERY_CONFIRMATION = 'USPS_DELIVERY_CONFIRMATION';
+    const _SIGNATURE_OPTION = 'SIGNATURE_OPTION';
 }