---
title: clsPolicyPeriodRateAdjustmentCollection
summary: API reference for clsPolicyPeriodRateAdjustmentCollection.
status: draft
owner: Technical Writer
last_reviewed: 2026-07-31
library: SAIF.Business.Policy.Premium
reference_type: package
---

# clsPolicyPeriodRateAdjustmentCollection

BOF collection of `clsPolicyPeriodRateAdjustment` instances for a policy period; holds all rate adjustments applied at the period level for premium computation.*

## Purpose
- Provides enumerable, ordered access to all rate adjustments for a policy period.*
- Consumed by period-level rating workflows that apply adjustments in sequence during premium calculation.*

## Context
- Namespace: `SAIF.Business.Policy.Premium`
- Assembly/package: `SAIF.Business.Policy.Premium`

## Public members
| Member | Signature | Purpose |
| --- | --- | --- |
| CurrentItem | `Public Shadows ReadOnly Property CurrentItem() As clsPolicyPeriodRateAdjustment` | Business value exposed as current item for callers of this API.* |
| Contains | `Public Overloads Function Contains(ByVal inPolicyPeriodRateAdjustment As clsPolicyPeriodRateAdjustment) As Boolean` | Checks whether the collection already contains the specified item or identifier. |
| Contains | `Public Overloads Function Contains(ByVal inPremiumAdjustmentTypeCode As String) As Boolean` | Checks whether the collection already contains the specified item or identifier. |
| GetPolicyPeriodRateAdjustments | `Public Shared Function GetPolicyPeriodRateAdjustments(ByVal inDataportal As IDataPortalInfo, ByVal inPremiumSetID As Decimal, Optional ByVal inPremiumSetDatabase As PremiumSetDatabases = PremiumSetDatabases.Enterprise) As clsPolicyPeriodRateAdjustmentCollection` | Loads cls policy period rate adjustment collection for the supplied lookup criteria. |
## Inherited public members

| Member | Signature | Purpose | Origin |
| --- | --- | --- | --- |
| First | `Sub First()` | Moves traversal to the first item in the BOF collection.† | `SAIF.Framework.Core — clsBusinessCollectionBase` |
| Last | `Sub Last()` | Moves traversal to the last item in the BOF collection.† | `SAIF.Framework.Core — clsBusinessCollectionBase` |
| Next | `Sub Next()` | Advances traversal to the next item.† | `SAIF.Framework.Core — clsBusinessCollectionBase` |
| Previous | `Sub Previous()` | Moves traversal to the previous item.† | `SAIF.Framework.Core — clsBusinessCollectionBase` |

## Behavioral notes
- Source file: `Business\SAIF.Business.Policy.Premium\clsPolicyPeriodRateAdjustmentCollection.vb`.

## Constraints and usage notes
- Scoped to a single policy period; adjustment order is governed by the sequence property.*


> **Note:** Statements marked with * were inferred from code structure, naming conventions, or
> contextual evidence where direct confirmation was not available in source artifacts. Statements
> marked with ** could not be confirmed; treat as unknown until verified.

## Sources
- `Business\SAIF.Business.Policy.Premium\clsPolicyPeriodRateAdjustmentCollection.vb`