Access Restriction Closure Period End Year Calculator
Resolve explicit whole-year closure policy including closure through final year and opening next year; no automatic privacy law, partial-date period or access-rights determination.
Description
A whole-year closure policy distinguishes its last closed year from the following first open year.
A whole-year closure policy distinguishes its last closed year from the following first open year. This convention differs from adding a duration to a precise date.1
Resolve explicit whole-year closure policy including closure through final year and opening next year; no automatic privacy law, partial-date period or access-rights determination.
When to use Access Restriction Closure Period End Year Calculator
Use this tool to resolve explicit whole-year closure policy including closure through final year and opening next year; no automatic privacy law, partial-date period or access-rights determination.
Prepare the inventory, measurements or policy dates for the collection and reporting period. Confirm units, record order and any independently established thresholds or permissions.
How to use Access Restriction Closure Period End Year Calculator and understand its results
- Prepare the inventory, measurements or policy dates for the collection and reporting period. Confirm units, record order and any independently established thresholds or permissions.
- Enter lastCoveredYear, callerClosureYearsAfterEndYear using the field table and calculation rules, then run the tool.
- Read lastPolicyClosedYear, firstPolicyOpenYear. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| lastCoveredYear | Last covered year | integer | Required |
| callerClosureYearsAfterEndYear | Caller closure years after end year | integer | Required |
Enter a four-digit last covered year from 1000 to 9999 and a nonnegative integer number of closure years after it. Add the declared period and return the final policy-closed year and the next policy-open year. Returned years are safe integers and may exceed four digits when the supplied period does.
lastClosedYear = lastCoveredYear + closureYears; firstOpenYear = lastClosedYear + 1 Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| lastPolicyClosedYear | Last policy closed year | number |
| firstPolicyOpenYear | First policy open year | number |
{
"input": {
"lastCoveredYear": 1950,
"callerClosureYearsAfterEndYear": 30
},
"output": {
"lastPolicyClosedYear": 1980,
"firstPolicyOpenYear": 1981
}
}Limitations and assumptions
This is an explicit whole-year policy calculation. It does not infer privacy requirements, process partial dates or determine actual access rights.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Deed of Gift Restriction Expiry Countdown Calculator: Reconcile deed restriction countdown with independently documented release state and flag mismatches; no deed interpretation or automatic access/copyright permission. For a complementary task, use Date Span Open vs Closed Range Classifier: Classify explicit known/unknown year endpoints in an archival descriptive range, distinct from ISO interval duration validation; -1 means unknown, not an actual year.
References
Similar or alternative tools
- Deed of Gift Restriction Expiry Countdown Calculator
Reconcile deed restriction countdown with independently documented release state and flag mismatches; no deed interpretation or automatic access/copyright permission.
- Date Span Open vs Closed Range Classifier
Classify explicit known/unknown year endpoints in an archival descriptive range, distinct from ISO interval duration validation; -1 means unknown, not an actual year.