diff --git a/api/src/services/import-services/critter/critter-header-configs.ts b/api/src/services/import-services/critter/critter-header-configs.ts
index 23fea4a64e..d65df3f829 100644
--- a/api/src/services/import-services/critter/critter-header-configs.ts
+++ b/api/src/services/import-services/critter/critter-header-configs.ts
@@ -8,6 +8,11 @@ import { CritterCSVConfig } from './import-critters-service';
 /**
  * Get the critter alias cell validator.
  *
+ * Rules:
+ *  1. The cell must be a string with a length between 1 and 50
+ *  2. The cell must be unique in the survey
+ *  3. The cell must be unique in the CSV
+ *
  * @param {Set<string>} surveyAliases The survey aliases.
  * @param {CSVConfigUtils<CritterCSVConfig>} configUtils The CSV config utils.
  * @returns {*} {(params: CSVParams) => CSVError[]} The validate cell callback
@@ -45,6 +50,11 @@ export const getCritterAliasCellValidator = (
 /**
  * Get the critter collection unit cell validator.
  *
+ * Rules:
+ *  1. The cell must be a string with a max length of 50 or empty
+ *  2. The header must be a valid collection category for the TSN
+ *  3. The cell value must be a valid collection unit for the collection category
+ *
  * @param {Object} rowDictionary The row dictionary.
  * @param {CSVConfigUtils<CritterCSVConfig>} configUtils The CSV config utils.
  * @returns {*} {(params: CSVParams) => CSVError[]} The validate cell callback
@@ -54,7 +64,7 @@ export const getCritterCollectionUnitCellValidator = (
   configUtils: CSVConfigUtils<CritterCSVConfig>
 ): ((params: CSVParams) => CSVError[]) => {
   return (params: CSVParams) => {
-    const cellErrors = validateZodCell(params, z.string().trim().min(1).max(50).optional());
+    const cellErrors = validateZodCell(params, z.string().max(50).optional());
 
     if (cellErrors.length || !params.cell) {
       return cellErrors;
@@ -116,6 +126,11 @@ export const getCritterCollectionUnitCellSetter = (
 /**
  * Get the critter sex cell validator.
  *
+ * Rules:
+ *  1. The cell must be a string with a min length of 1 and max length of 50
+ *  2. The TSN must have sex measurements available
+ *  3. The cell value must be a valid sex option for the TSN
+ *
  * @param {Object} rowDictionary The row dictionary.
  * @param {CSVConfigUtils<CritterCSVConfig>} configUtils The CSV config utils.
  * @returns {*} {(params: CSVParams) => CSVError[]} The validate cell callback
diff --git a/api/src/services/import-services/critter/import-critters-service.ts b/api/src/services/import-services/critter/import-critters-service.ts
index 2c80f697c3..d03f1ccc65 100644
--- a/api/src/services/import-services/critter/import-critters-service.ts
+++ b/api/src/services/import-services/critter/import-critters-service.ts
@@ -2,6 +2,7 @@ import { merge, set } from 'lodash';
 import { v4 } from 'uuid';
 import { WorkSheet } from 'xlsx';
 import { IDBConnection } from '../../../database/db';
+import { ApiGeneralError } from '../../../errors/api-error';
 import { CSVConfigUtils } from '../../../utils/csv-utils/csv-config-utils';
 import { validateCSVWorksheet } from '../../../utils/csv-utils/csv-config-validation';
 import {
@@ -104,22 +105,20 @@ export class ImportCrittersService extends DBService {
 
     const payloads = await this._getImportPayloads(rows);
 
-    console.log({ payloads });
-
-    //// Add critters to Critterbase
-    //const bulkResponse = await this.critterbaseService.bulkCreate(payloads.critterbasePayload);
-    //
-    //// Check critterbase inserted the full list of critters
-    //// In reality this error should not be triggered, safeguard to prevent floating critter ids in SIMS
-    //if (bulkResponse.created.critters !== payloads.simsPayload.length) {
-    //  throw new ApiGeneralError('Unable to fully import critters from CSV', [
-    //    'importCrittersStrategy -> insertCsvCrittersIntoSimsAndCritterbase',
-    //    'critterbase bulk create response count !== critterIds.length'
-    //  ]);
-    //}
-    //
-    //// Add Critters to SIMS survey
-    //await this.surveyCritterService.addCrittersToSurvey(this.surveyId, payloads.simsPayload);
+    // Add critters to Critterbase
+    const bulkResponse = await this.critterbaseService.bulkCreate(payloads.critterbasePayload);
+
+    // Check critterbase inserted the full list of critters
+    // In reality this error should not be triggered, safeguard to prevent floating critter ids in SIMS
+    if (bulkResponse.created.critters !== payloads.simsPayload.length) {
+      throw new ApiGeneralError('Unable to fully import critters from CSV', [
+        'importCrittersService->importCSVWorksheet',
+        'critterbase bulk create response count !== critterIds.length'
+      ]);
+    }
+
+    // Add Critters to SIMS survey
+    await this.surveyCritterService.addCrittersToSurvey(this.surveyId, payloads.simsPayload);
 
     return [];
   }