# E_0233 — Check of self-installation or grandfathering under §19 Abs. 5 MsbG
Check of self-installation or grandfathering under §19 Abs. 5 MsbG
| Attribute | Value |
|---|---|
| Designation | Check of self-installation or grandfathering under §19 Abs. 5 MsbG |
| Market role | MSB |
| Regulatory determination / chapter | WiM electricity |
| Section | 8.8.2: AD: Initial installation of a iMS in an existing metering location |
| Check identifiers | Response: [21030](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21030), [21031](/en/schnittstellen/202604/pruefi/IFTSTA/PI_21031) |
| EBD version | 4.2 |
| As at | 2026-06-23 |
## Decision tree
\nDecision tree E_0233: Prüfung Selbsteinbau oder Bestandsschutz nach §19 Abs. 5 MsbG\n\n\n\nE_0233\nPrüfung Selbsteinbau oder\nBestandsschutz nach §19 Abs.\n5 MsbG\nChecking role: MSB\n\nyes\n\nno\n\nno\n\nyes\n\nyes\n\nno\n\nyes\n\nno\n\n\n1\nLiegt für die für den Rollout\nvorgesehene Messlokation ein\nBestandsschutz gemäß §19 Abs.\n5 MsbG vor?\n\n\n2\nWird auf den Bestandsschutz\ngemäß § 19 Abs. 5 MsbG für die\nMesslokation verzichtet?\n\n\nA01\nCluster: Rejection\nBestandsschutz gemäß § 19 Abs. 5\nMsbG für die Messlokation\n\n\n3\nIst der Selbsteinbau eines iMS\noder einer mME geplant?\n\n\nA02\nCluster: Rejection\nSelbsteinbau eines iMS oder einer\nmME geplant\n\n\n4\nWird auf den Selbsteinbau eines\niMS oder einer mME verzichtet?\n\n\nA03\nCluster: Consent\nAuf Selbsteinbau eines iMS oder\neiner mME wird verzichtet\n\n\nA04\nCluster: Rejection\nZum jetzigen Zeitpunkt noch keine\nAussage hin-sichtlich Selbsteinbau\nmöglich\n"} kapitel={"WiM Strom · 8.8.2: AD: Ersteinbau eines iMS in eine bestehende Messlokation"} name={"Prüfung Selbsteinbau oder Bestandsschutz nach §19 Abs. 5 MsbG"}>
| Step | Check | Result | Code | Note |
|---|---|---|---|---|
| 1 | Is there grandfathering pursuant to §19 (5) MsbG for the metering location earmarked for the rollout? | yes | → Step 2 | — |
| — | — | no | → Step 3 | — |
| 2 | Is the grandfathering pursuant to § 19 Abs. 5 MsbG waived for the metering location? | no | A01 | Cluster: Rejection Grandfathering pursuant to § 19 para. 5 MsbG for the metering location |
| — | — | yes | → Step 3 | — |
| 3 | Is self-installation of a iMS or a mME planned? | yes | A02 | Cluster: Rejection Self-installation of a iMS or a mME is planned |
| — | — | no | → Step 4 | — |
| 4 | Is self-installation of a iMS or a mME waived? | yes | A03 | Cluster: Consent Self-installation of a iMS or a mME is waived |
| — | — | no | A04 | Cluster: Rejection No statement regarding self-installation is possible at the present point in time |
## Result codes
| Result code | Cluster | Meaning |
|---|---|---|
| `A01` | Rejection | Legacy protection under § 19 para. 5 MsbG for the metering location |
| `A02` | Rejection | Self-installation of a iMS or a mME planned |
| `A03` | Consent | Self-installation of iMS or mME is waived |
| `A04` | Rejection | No statement possible regarding self-installation at this point in time |
*Role of the numbers: »response« are the check identifiers that list this tree in the ebd_code column of the check identifier table (knowledge-collection · FV 202604); »checked« is the difference set to it from the return path of the process steps.*
:::note{title="Not checked against a process"}
**No** consistency check was carried out for this decision tree — no generated BPMN found. Whether the MACO APP implements this tree completely is therefore not evidenced here.
:::