From 56fa62e1221fe9b510f344cc85f55ff8e0bff220 Mon Sep 17 00:00:00 2001 From: Zane Meyers Date: Mon, 30 Mar 2026 19:58:33 -0400 Subject: [PATCH] vault backup: 2026-03-30 19:58:33 --- timestamped/2026-03-29_16-01-12.md | 33 ++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 timestamped/2026-03-29_16-01-12.md diff --git a/timestamped/2026-03-29_16-01-12.md b/timestamped/2026-03-29_16-01-12.md new file mode 100644 index 0000000..77b4709 --- /dev/null +++ b/timestamped/2026-03-29_16-01-12.md @@ -0,0 +1,33 @@ +--- +id: 2026-03-29T16:01:12-04:00 +aliases: [] +title: 2026-03-29 16:01:12 +tags: + - destiny/permanent + - status/draft + - type/periodic/timestamped +dg-publish: true +date-created: 2026-03-29T16:01:12-04:00 +daily: "[[2026-03-29]]" +weekly: "[[2026-W13]]" +monthly: "[[2026-03]]" +quarterly: "[[2026-Q1]]" +yearly: "[[2026]]" +--- +# 2026-03-29 16:01:12 + +## AACE Estimate Classification + +[Association for the Advancement of Cost Engineering (AACE)](https://web.aacei.org/) + +AACE International Recommended Practice No. 18R-97 + +| Estimate Class | Expected Accuracy (Low) | Expected Accuracy (High) | +| --------------------------------------------- | -----------------------:| ------------------------:| +| Class 5 --- Concept Screening | -20% to -50% | +30% to +100% | +| Class 4 --- Study or Feasibility | -15% to -30% | +20% to +50% | +| Class 3 --- Budget, Authorization, or Control | -10% to -20% | +10% to +30% | +| Class 2 --- Control or Bid/Tender | -5% to -15% | +5% to +20% | +| Class 1 --- Check Estimate or Bid/Tender | -3% to -10% | +3% to +15% | + +![](https://library.aacei.org/pgd01/PGD01_Figure1.png)